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Finding the Fourth Proportional to 404,518, 558,235.08 and 225,670

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Solution

The fourth proportional to 404,518, 558,235.08 and 225,670 is: 311,424.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,518 : 558,235.08 = 225,670 : x
  2. Step 2: Convert to fraction form
    404,518/558,235.08 = 225,670/x
  3. Step 3: Cross multiply
    404,518x = 558,235.08 × 225,670
  4. Step 4: Simplify right side
    404,518x = 125,976,910,503.60
  5. Step 5: Solve for x
    x = 125,976,910,503.60/404,518
  6. Step 6: Final answer
    x = 311,424.73

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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.