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Finding the Fourth Proportional to 247,890.72, 342,092.88 and 134,713.56

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Solution

The fourth proportional to 247,890.72, 342,092.88 and 134,713.56 is: 185,906.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,890.72 : 342,092.88 = 134,713.56 : x
  2. Step 2: Convert to fraction form
    247,890.72/342,092.88 = 134,713.56/x
  3. Step 3: Cross multiply
    247,890.72x = 342,092.88 × 134,713.56
  4. Step 4: Simplify right side
    247,890.72x = 46,084,549,715.45
  5. Step 5: Solve for x
    x = 46,084,549,715.45/247,890.72
  6. Step 6: Final answer
    x = 185,906.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.