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Finding the Fourth Proportional to 252,042.88, 347,820.24 and 138,865.64

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Solution

The fourth proportional to 252,042.88, 347,820.24 and 138,865.64 is: 191,635.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,042.88 : 347,820.24 = 138,865.64 : x
  2. Step 2: Convert to fraction form
    252,042.88/347,820.24 = 138,865.64/x
  3. Step 3: Cross multiply
    252,042.88x = 347,820.24 × 138,865.64
  4. Step 4: Simplify right side
    252,042.88x = 48,300,280,232.55
  5. Step 5: Solve for x
    x = 48,300,280,232.55/252,042.88
  6. Step 6: Final answer
    x = 191,635.17

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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.