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Finding the Fourth Proportional to 252,126, 347,941.08 and 138,956.04

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Solution

The fourth proportional to 252,126, 347,941.08 and 138,956.04 is: 191,763.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,126 : 347,941.08 = 138,956.04 : x
  2. Step 2: Convert to fraction form
    252,126/347,941.08 = 138,956.04/x
  3. Step 3: Cross multiply
    252,126x = 347,941.08 × 138,956.04
  4. Step 4: Simplify right side
    252,126x = 48,348,514,630.12
  5. Step 5: Solve for x
    x = 48,348,514,630.12/252,126
  6. Step 6: Final answer
    x = 191,763.30

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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.