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Finding the Fourth Proportional to 286,269.38, 429,404.09 and 89,277.38

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Solution

The fourth proportional to 286,269.38, 429,404.09 and 89,277.38 is: 133,916.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,269.38 : 429,404.09 = 89,277.38 : x
  2. Step 2: Convert to fraction form
    286,269.38/429,404.09 = 89,277.38/x
  3. Step 3: Cross multiply
    286,269.38x = 429,404.09 × 89,277.38
  4. Step 4: Simplify right side
    286,269.38x = 38,336,072,116.48
  5. Step 5: Solve for x
    x = 38,336,072,116.48/286,269.38
  6. Step 6: Final answer
    x = 133,916.08

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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.