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Finding the Fourth Proportional to 247,415.08, 371,146.90 and 69,923.40

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Solution

The fourth proportional to 247,415.08, 371,146.90 and 69,923.40 is: 104,891.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,415.08 : 371,146.90 = 69,923.40 : x
  2. Step 2: Convert to fraction form
    247,415.08/371,146.90 = 69,923.40/x
  3. Step 3: Cross multiply
    247,415.08x = 371,146.90 × 69,923.40
  4. Step 4: Simplify right side
    247,415.08x = 25,951,853,147.46
  5. Step 5: Solve for x
    x = 25,951,853,147.46/247,415.08
  6. Step 6: Final answer
    x = 104,891.96

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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.