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Finding the Fourth Proportional to 251,760.96, 347,430.12 and 137,040.03

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Solution

The fourth proportional to 251,760.96, 347,430.12 and 137,040.03 is: 189,115.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,760.96 : 347,430.12 = 137,040.03 : x
  2. Step 2: Convert to fraction form
    251,760.96/347,430.12 = 137,040.03/x
  3. Step 3: Cross multiply
    251,760.96x = 347,430.12 × 137,040.03
  4. Step 4: Simplify right side
    251,760.96x = 47,611,834,067.70
  5. Step 5: Solve for x
    x = 47,611,834,067.70/251,760.96
  6. Step 6: Final answer
    x = 189,115.24

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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.