Home / 284,001.76-391,920.24-156,682.72

Finding the Fourth Proportional to 284,001.76, 391,920.24 and 156,682.72

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Solution

The fourth proportional to 284,001.76, 391,920.24 and 156,682.72 is: 216,220.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,001.76 : 391,920.24 = 156,682.72 : x
  2. Step 2: Convert to fraction form
    284,001.76/391,920.24 = 156,682.72/x
  3. Step 3: Cross multiply
    284,001.76x = 391,920.24 × 156,682.72
  4. Step 4: Simplify right side
    284,001.76x = 61,407,129,226.25
  5. Step 5: Solve for x
    x = 61,407,129,226.25/284,001.76
  6. Step 6: Final answer
    x = 216,220.95

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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.