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Finding the Fourth Proportional to 418,027.50, 576,879.03 and 245,951.91

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Solution

The fourth proportional to 418,027.50, 576,879.03 and 245,951.91 is: 339,414.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,027.50 : 576,879.03 = 245,951.91 : x
  2. Step 2: Convert to fraction form
    418,027.50/576,879.03 = 245,951.91/x
  3. Step 3: Cross multiply
    418,027.50x = 576,879.03 × 245,951.91
  4. Step 4: Simplify right side
    418,027.50x = 141,884,499,267.45
  5. Step 5: Solve for x
    x = 141,884,499,267.45/418,027.50
  6. Step 6: Final answer
    x = 339,414.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.