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Finding the Fourth Proportional to 253,027.77, 349,179.71 and 138,306.57

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Solution

The fourth proportional to 253,027.77, 349,179.71 and 138,306.57 is: 190,863.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,027.77 : 349,179.71 = 138,306.57 : x
  2. Step 2: Convert to fraction form
    253,027.77/349,179.71 = 138,306.57/x
  3. Step 3: Cross multiply
    253,027.77x = 349,179.71 × 138,306.57
  4. Step 4: Simplify right side
    253,027.77x = 48,293,847,312.16
  5. Step 5: Solve for x
    x = 48,293,847,312.16/253,027.77
  6. Step 6: Final answer
    x = 190,863.82

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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.