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Finding the Fourth Proportional to 375,086.52, 562,448.34 and 138,540.60

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Solution

The fourth proportional to 375,086.52, 562,448.34 and 138,540.60 is: 207,743.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,086.52 : 562,448.34 = 138,540.60 : x
  2. Step 2: Convert to fraction form
    375,086.52/562,448.34 = 138,540.60/x
  3. Step 3: Cross multiply
    375,086.52x = 562,448.34 × 138,540.60
  4. Step 4: Simplify right side
    375,086.52x = 77,921,930,492.60
  5. Step 5: Solve for x
    x = 77,921,930,492.60/375,086.52
  6. Step 6: Final answer
    x = 207,743.88

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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.