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Finding the Fourth Proportional to 375,520.50, 518,218.29 and 205,760.70

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Solution

The fourth proportional to 375,520.50, 518,218.29 and 205,760.70 is: 283,949.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,520.50 : 518,218.29 = 205,760.70 : x
  2. Step 2: Convert to fraction form
    375,520.50/518,218.29 = 205,760.70/x
  3. Step 3: Cross multiply
    375,520.50x = 518,218.29 × 205,760.70
  4. Step 4: Simplify right side
    375,520.50x = 106,628,958,103.20
  5. Step 5: Solve for x
    x = 106,628,958,103.20/375,520.50
  6. Step 6: Final answer
    x = 283,949.77

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1.5x scale

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.