Home / 284,036.20-391,951.74-156,711.76

Finding the Fourth Proportional to 284,036.20, 391,951.74 and 156,711.76

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Solution

The fourth proportional to 284,036.20, 391,951.74 and 156,711.76 is: 216,252.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,036.20 : 391,951.74 = 156,711.76 : x
  2. Step 2: Convert to fraction form
    284,036.20/391,951.74 = 156,711.76/x
  3. Step 3: Cross multiply
    284,036.20x = 391,951.74 × 156,711.76
  4. Step 4: Simplify right side
    284,036.20x = 61,423,447,010.46
  5. Step 5: Solve for x
    x = 61,423,447,010.46/284,036.20
  6. Step 6: Final answer
    x = 216,252.18

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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.