Home / 286,276.13-429,414.21-89,284.13

Finding the Fourth Proportional to 286,276.13, 429,414.21 and 89,284.13

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Solution

The fourth proportional to 286,276.13, 429,414.21 and 89,284.13 is: 133,926.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,276.13 : 429,414.21 = 89,284.13 : x
  2. Step 2: Convert to fraction form
    286,276.13/429,414.21 = 89,284.13/x
  3. Step 3: Cross multiply
    286,276.13x = 429,414.21 × 89,284.13
  4. Step 4: Simplify right side
    286,276.13x = 38,339,872,002.42
  5. Step 5: Solve for x
    x = 38,339,872,002.42/286,276.13
  6. Step 6: Final answer
    x = 133,926.19

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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.