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Finding the Fourth Proportional to 252,049.60, 347,834.82 and 138,872.32

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Solution

The fourth proportional to 252,049.60, 347,834.82 and 138,872.32 is: 191,647.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,049.60 : 347,834.82 = 138,872.32 : x
  2. Step 2: Convert to fraction form
    252,049.60/347,834.82 = 138,872.32/x
  3. Step 3: Cross multiply
    252,049.60x = 347,834.82 × 138,872.32
  4. Step 4: Simplify right side
    252,049.60x = 48,304,628,430.18
  5. Step 5: Solve for x
    x = 48,304,628,430.18/252,049.60
  6. Step 6: Final answer
    x = 191,647.31

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1.5x scale

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.