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Finding the Fourth Proportional to 252,077.54, 347,883.86 and 138,900.29

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Solution

The fourth proportional to 252,077.54, 347,883.86 and 138,900.29 is: 191,691.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,077.54 : 347,883.86 = 138,900.29 : x
  2. Step 2: Convert to fraction form
    252,077.54/347,883.86 = 138,900.29/x
  3. Step 3: Cross multiply
    252,077.54x = 347,883.86 × 138,900.29
  4. Step 4: Simplify right side
    252,077.54x = 48,321,166,606.40
  5. Step 5: Solve for x
    x = 48,321,166,606.40/252,077.54
  6. Step 6: Final answer
    x = 191,691.68

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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.