Home / 498,721.20-748,081.80-183,137.10

Finding the Fourth Proportional to 498,721.20, 748,081.80 and 183,137.10

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Solution

The fourth proportional to 498,721.20, 748,081.80 and 183,137.10 is: 274,705.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,721.20 : 748,081.80 = 183,137.10 : x
  2. Step 2: Convert to fraction form
    498,721.20/748,081.80 = 183,137.10/x
  3. Step 3: Cross multiply
    498,721.20x = 748,081.80 × 183,137.10
  4. Step 4: Simplify right side
    498,721.20x = 137,001,531,414.78
  5. Step 5: Solve for x
    x = 137,001,531,414.78/498,721.20
  6. Step 6: Final answer
    x = 274,705.65

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Similar ratio
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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.