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Finding the Fourth Proportional to 284,240.53, 392,241.65 and 156,913.39

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Solution

The fourth proportional to 284,240.53, 392,241.65 and 156,913.39 is: 216,534.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,240.53 : 392,241.65 = 156,913.39 : x
  2. Step 2: Convert to fraction form
    284,240.53/392,241.65 = 156,913.39/x
  3. Step 3: Cross multiply
    284,240.53x = 392,241.65 × 156,913.39
  4. Step 4: Simplify right side
    284,240.53x = 61,547,967,000.69
  5. Step 5: Solve for x
    x = 61,547,967,000.69/284,240.53
  6. Step 6: Final answer
    x = 216,534.80

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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.