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Finding the Fourth Proportional to 375,217.68, 517,880.82 and 239,220.30

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Solution

The fourth proportional to 375,217.68, 517,880.82 and 239,220.30 is: 330,175.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,217.68 : 517,880.82 = 239,220.30 : x
  2. Step 2: Convert to fraction form
    375,217.68/517,880.82 = 239,220.30/x
  3. Step 3: Cross multiply
    375,217.68x = 517,880.82 × 239,220.30
  4. Step 4: Simplify right side
    375,217.68x = 123,887,605,124.65
  5. Step 5: Solve for x
    x = 123,887,605,124.65/375,217.68
  6. Step 6: Final answer
    x = 330,175.29

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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.