Home / 305,115.20-457,505.12-242,337.36

Finding the Fourth Proportional to 305,115.20, 457,505.12 and 242,337.36

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Solution

The fourth proportional to 305,115.20, 457,505.12 and 242,337.36 is: 363,372.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,115.20 : 457,505.12 = 242,337.36 : x
  2. Step 2: Convert to fraction form
    305,115.20/457,505.12 = 242,337.36/x
  3. Step 3: Cross multiply
    305,115.20x = 457,505.12 × 242,337.36
  4. Step 4: Simplify right side
    305,115.20x = 110,870,581,755.60
  5. Step 5: Solve for x
    x = 110,870,581,755.60/305,115.20
  6. Step 6: Final answer
    x = 363,372.86

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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.