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Finding the Fourth Proportional to 514,744.80, 772,117.20 and 140,767.80

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Solution

The fourth proportional to 514,744.80, 772,117.20 and 140,767.80 is: 211,151.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,744.80 : 772,117.20 = 140,767.80 : x
  2. Step 2: Convert to fraction form
    514,744.80/772,117.20 = 140,767.80/x
  3. Step 3: Cross multiply
    514,744.80x = 772,117.20 × 140,767.80
  4. Step 4: Simplify right side
    514,744.80x = 108,689,239,586.16
  5. Step 5: Solve for x
    x = 108,689,239,586.16/514,744.80
  6. Step 6: Final answer
    x = 211,151.70

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Similar ratio
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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.