Home / 284,045.32-391,982.50-156,721.16

Finding the Fourth Proportional to 284,045.32, 391,982.50 and 156,721.16

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Solution

The fourth proportional to 284,045.32, 391,982.50 and 156,721.16 is: 216,275.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,045.32 : 391,982.50 = 156,721.16 : x
  2. Step 2: Convert to fraction form
    284,045.32/391,982.50 = 156,721.16/x
  3. Step 3: Cross multiply
    284,045.32x = 391,982.50 × 156,721.16
  4. Step 4: Simplify right side
    284,045.32x = 61,431,952,099.70
  5. Step 5: Solve for x
    x = 61,431,952,099.70/284,045.32
  6. Step 6: Final answer
    x = 216,275.18

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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.