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Finding the Fourth Proportional to 851.47, 1,277.08 and 235.02

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Solution

The fourth proportional to 851.47, 1,277.08 and 235.02 is: 352.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    851.47 : 1,277.08 = 235.02 : x
  2. Step 2: Convert to fraction form
    851.47/1,277.08 = 235.02/x
  3. Step 3: Cross multiply
    851.47x = 1,277.08 × 235.02
  4. Step 4: Simplify right side
    851.47x = 300,139.34
  5. Step 5: Solve for x
    x = 300,139.34/851.47
  6. Step 6: Final answer
    x = 352.50

Related Problems

Find fourth proportional to 425.74, 638.54 and 117.51
Half scale
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Double scale
Find fourth proportional to 852.47, 1,278.58 and 236.02
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.