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Finding the Fourth Proportional to 375,520.50, 518,230.44 and 205,765.56

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Solution

The fourth proportional to 375,520.50, 518,230.44 and 205,765.56 is: 283,963.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,520.50 : 518,230.44 = 205,765.56 : x
  2. Step 2: Convert to fraction form
    375,520.50/518,230.44 = 205,765.56/x
  3. Step 3: Cross multiply
    375,520.50x = 518,230.44 × 205,765.56
  4. Step 4: Simplify right side
    375,520.50x = 106,633,976,695.65
  5. Step 5: Solve for x
    x = 106,633,976,695.65/375,520.50
  6. Step 6: Final answer
    x = 283,963.13

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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.