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Finding the Fourth Proportional to 875.94, 1,314.10 and 290.96

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Solution

The fourth proportional to 875.94, 1,314.10 and 290.96 is: 436.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    875.94 : 1,314.10 = 290.96 : x
  2. Step 2: Convert to fraction form
    875.94/1,314.10 = 290.96/x
  3. Step 3: Cross multiply
    875.94x = 1,314.10 × 290.96
  4. Step 4: Simplify right side
    875.94x = 382,350.54
  5. Step 5: Solve for x
    x = 382,350.54/875.94
  6. Step 6: Final answer
    x = 436.50

Related Problems

Find fourth proportional to 437.97, 657.05 and 145.48
Half scale
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Double scale
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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.