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Finding the Fourth Proportional to 601.44, 830.31 and 352.76

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Solution

The fourth proportional to 601.44, 830.31 and 352.76 is: 486.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.44 : 830.31 = 352.76 : x
  2. Step 2: Convert to fraction form
    601.44/830.31 = 352.76/x
  3. Step 3: Cross multiply
    601.44x = 830.31 × 352.76
  4. Step 4: Simplify right side
    601.44x = 292,894.68
  5. Step 5: Solve for x
    x = 292,894.68/601.44
  6. Step 6: Final answer
    x = 486.99

Related Problems

Find fourth proportional to 300.72, 415.15 and 176.38
Half scale
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Double scale
Find fourth proportional to 602.44, 831.69 and 353.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.