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Finding the Fourth Proportional to 252,007.56, 347,769.70 and 138,830.44

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Solution

The fourth proportional to 252,007.56, 347,769.70 and 138,830.44 is: 191,585.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,007.56 : 347,769.70 = 138,830.44 : x
  2. Step 2: Convert to fraction form
    252,007.56/347,769.70 = 138,830.44/x
  3. Step 3: Cross multiply
    252,007.56x = 347,769.70 × 138,830.44
  4. Step 4: Simplify right side
    252,007.56x = 48,281,020,469.67
  5. Step 5: Solve for x
    x = 48,281,020,469.67/252,007.56
  6. Step 6: Final answer
    x = 191,585.60

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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.