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Finding the Fourth Proportional to 247,446.12, 371,169 and 142,197.96

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Solution

The fourth proportional to 247,446.12, 371,169 and 142,197.96 is: 213,296.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,446.12 : 371,169 = 142,197.96 : x
  2. Step 2: Convert to fraction form
    247,446.12/371,169 = 142,197.96/x
  3. Step 3: Cross multiply
    247,446.12x = 371,169 × 142,197.96
  4. Step 4: Simplify right side
    247,446.12x = 52,779,474,615.24
  5. Step 5: Solve for x
    x = 52,779,474,615.24/247,446.12
  6. Step 6: Final answer
    x = 213,296.84

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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.