Home / 498,830.55-748,356.39-143,816.87

Finding the Fourth Proportional to 498,830.55, 748,356.39 and 143,816.87

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Solution

The fourth proportional to 498,830.55, 748,356.39 and 143,816.87 is: 215,757.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,830.55 : 748,356.39 = 143,816.87 : x
  2. Step 2: Convert to fraction form
    498,830.55/748,356.39 = 143,816.87/x
  3. Step 3: Cross multiply
    498,830.55x = 748,356.39 × 143,816.87
  4. Step 4: Simplify right side
    498,830.55x = 107,626,269,912.52
  5. Step 5: Solve for x
    x = 107,626,269,912.52/498,830.55
  6. Step 6: Final answer
    x = 215,757.17

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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.