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Finding the Fourth Proportional to 253,004.30, 349,134.45 and 156,251.42

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Solution

The fourth proportional to 253,004.30, 349,134.45 and 156,251.42 is: 215,619.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,004.30 : 349,134.45 = 156,251.42 : x
  2. Step 2: Convert to fraction form
    253,004.30/349,134.45 = 156,251.42/x
  3. Step 3: Cross multiply
    253,004.30x = 349,134.45 × 156,251.42
  4. Step 4: Simplify right side
    253,004.30x = 54,552,751,837.75
  5. Step 5: Solve for x
    x = 54,552,751,837.75/253,004.30
  6. Step 6: Final answer
    x = 215,619.86

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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.