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Finding the Fourth Proportional to 375,521, 518,218.98 and 205,761.20

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Solution

The fourth proportional to 375,521, 518,218.98 and 205,761.20 is: 283,950.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,521 : 518,218.98 = 205,761.20 : x
  2. Step 2: Convert to fraction form
    375,521/518,218.98 = 205,761.20/x
  3. Step 3: Cross multiply
    375,521x = 518,218.98 × 205,761.20
  4. Step 4: Simplify right side
    375,521x = 106,629,359,187.58
  5. Step 5: Solve for x
    x = 106,629,359,187.58/375,521
  6. Step 6: Final answer
    x = 283,950.46

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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.