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Finding the Fourth Proportional to 375,130.16, 517,720.92 and 239,169.04

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Solution

The fourth proportional to 375,130.16, 517,720.92 and 239,169.04 is: 330,079.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,130.16 : 517,720.92 = 239,169.04 : x
  2. Step 2: Convert to fraction form
    375,130.16/517,720.92 = 239,169.04/x
  3. Step 3: Cross multiply
    375,130.16x = 517,720.92 × 239,169.04
  4. Step 4: Simplify right side
    375,130.16x = 123,822,815,424.32
  5. Step 5: Solve for x
    x = 123,822,815,424.32/375,130.16
  6. Step 6: Final answer
    x = 330,079.61

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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.