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Finding the Fourth Proportional to 258,266.88, 387,523.20 and 125,003.52

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Solution

The fourth proportional to 258,266.88, 387,523.20 and 125,003.52 is: 187,564.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,266.88 : 387,523.20 = 125,003.52 : x
  2. Step 2: Convert to fraction form
    258,266.88/387,523.20 = 125,003.52/x
  3. Step 3: Cross multiply
    258,266.88x = 387,523.20 × 125,003.52
  4. Step 4: Simplify right side
    258,266.88x = 48,441,764,081.66
  5. Step 5: Solve for x
    x = 48,441,764,081.66/258,266.88
  6. Step 6: Final answer
    x = 187,564.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.