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Finding the Fourth Proportional to 253,380.31, 349,641.01 and 171,542.08

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Solution

The fourth proportional to 253,380.31, 349,641.01 and 171,542.08 is: 236,711.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,380.31 : 349,641.01 = 171,542.08 : x
  2. Step 2: Convert to fraction form
    253,380.31/349,641.01 = 171,542.08/x
  3. Step 3: Cross multiply
    253,380.31x = 349,641.01 × 171,542.08
  4. Step 4: Simplify right side
    253,380.31x = 59,978,146,108.70
  5. Step 5: Solve for x
    x = 59,978,146,108.70/253,380.31
  6. Step 6: Final answer
    x = 236,711.95

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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.