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Finding the Fourth Proportional to 438,800.28, 658,225.92 and 123,281.82

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Solution

The fourth proportional to 438,800.28, 658,225.92 and 123,281.82 is: 184,929.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,800.28 : 658,225.92 = 123,281.82 : x
  2. Step 2: Convert to fraction form
    438,800.28/658,225.92 = 123,281.82/x
  3. Step 3: Cross multiply
    438,800.28x = 658,225.92 × 123,281.82
  4. Step 4: Simplify right side
    438,800.28x = 81,147,289,388.77
  5. Step 5: Solve for x
    x = 81,147,289,388.77/438,800.28
  6. Step 6: Final answer
    x = 184,929.89

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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.