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Finding the Fourth Proportional to 158,500.40, 237,761.40 and 50,421.20

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Solution

The fourth proportional to 158,500.40, 237,761.40 and 50,421.20 is: 75,635.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,500.40 : 237,761.40 = 50,421.20 : x
  2. Step 2: Convert to fraction form
    158,500.40/237,761.40 = 50,421.20/x
  3. Step 3: Cross multiply
    158,500.40x = 237,761.40 × 50,421.20
  4. Step 4: Simplify right side
    158,500.40x = 11,988,215,101.68
  5. Step 5: Solve for x
    x = 11,988,215,101.68/158,500.40
  6. Step 6: Final answer
    x = 75,635.24

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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.