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Finding the Fourth Proportional to 442,667.46, 663,817.85 and 138,960.14

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Solution

The fourth proportional to 442,667.46, 663,817.85 and 138,960.14 is: 208,382.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,667.46 : 663,817.85 = 138,960.14 : x
  2. Step 2: Convert to fraction form
    442,667.46/663,817.85 = 138,960.14/x
  3. Step 3: Cross multiply
    442,667.46x = 663,817.85 × 138,960.14
  4. Step 4: Simplify right side
    442,667.46x = 92,244,218,051.41
  5. Step 5: Solve for x
    x = 92,244,218,051.41/442,667.46
  6. Step 6: Final answer
    x = 208,382.65

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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.