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Finding the Fourth Proportional to 305,379.60, 458,248.01 and 127,871.75

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Solution

The fourth proportional to 305,379.60, 458,248.01 and 127,871.75 is: 191,882.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,379.60 : 458,248.01 = 127,871.75 : x
  2. Step 2: Convert to fraction form
    305,379.60/458,248.01 = 127,871.75/x
  3. Step 3: Cross multiply
    305,379.60x = 458,248.01 × 127,871.75
  4. Step 4: Simplify right side
    305,379.60x = 58,596,974,972.72
  5. Step 5: Solve for x
    x = 58,596,974,972.72/305,379.60
  6. Step 6: Final answer
    x = 191,882.41

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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.