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Finding the Fourth Proportional to 375,067.80, 562,541.06 and 138,521.88

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Solution

The fourth proportional to 375,067.80, 562,541.06 and 138,521.88 is: 207,760.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,067.80 : 562,541.06 = 138,521.88 : x
  2. Step 2: Convert to fraction form
    375,067.80/562,541.06 = 138,521.88/x
  3. Step 3: Cross multiply
    375,067.80x = 562,541.06 × 138,521.88
  4. Step 4: Simplify right side
    375,067.80x = 77,924,245,208.39
  5. Step 5: Solve for x
    x = 77,924,245,208.39/375,067.80
  6. Step 6: Final answer
    x = 207,760.42

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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.