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Finding the Fourth Proportional to 252,000.55, 347,760.60 and 138,823.30

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Solution

The fourth proportional to 252,000.55, 347,760.60 and 138,823.30 is: 191,576.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,000.55 : 347,760.60 = 138,823.30 : x
  2. Step 2: Convert to fraction form
    252,000.55/347,760.60 = 138,823.30/x
  3. Step 3: Cross multiply
    252,000.55x = 347,760.60 × 138,823.30
  4. Step 4: Simplify right side
    252,000.55x = 48,277,274,101.98
  5. Step 5: Solve for x
    x = 48,277,274,101.98/252,000.55
  6. Step 6: Final answer
    x = 191,576.07

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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.