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Finding the Fourth Proportional to 247,471.36, 341,520.16 and 137,092.86

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Solution

The fourth proportional to 247,471.36, 341,520.16 and 137,092.86 is: 189,193.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,471.36 : 341,520.16 = 137,092.86 : x
  2. Step 2: Convert to fraction form
    247,471.36/341,520.16 = 137,092.86/x
  3. Step 3: Cross multiply
    247,471.36x = 341,520.16 × 137,092.86
  4. Step 4: Simplify right side
    247,471.36x = 46,819,975,482.06
  5. Step 5: Solve for x
    x = 46,819,975,482.06/247,471.36
  6. Step 6: Final answer
    x = 189,193.51

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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.