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Finding the Fourth Proportional to 253,764.02, 350,209.02 and 139,042.88

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Solution

The fourth proportional to 253,764.02, 350,209.02 and 139,042.88 is: 191,887.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,764.02 : 350,209.02 = 139,042.88 : x
  2. Step 2: Convert to fraction form
    253,764.02/350,209.02 = 139,042.88/x
  3. Step 3: Cross multiply
    253,764.02x = 350,209.02 × 139,042.88
  4. Step 4: Simplify right side
    253,764.02x = 48,694,070,742.78
  5. Step 5: Solve for x
    x = 48,694,070,742.78/253,764.02
  6. Step 6: Final answer
    x = 191,887.21

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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.