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Finding the Fourth Proportional to 375,969.68, 564,080.84 and 139,331.44

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Solution

The fourth proportional to 375,969.68, 564,080.84 and 139,331.44 is: 209,043.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,969.68 : 564,080.84 = 139,331.44 : x
  2. Step 2: Convert to fraction form
    375,969.68/564,080.84 = 139,331.44/x
  3. Step 3: Cross multiply
    375,969.68x = 564,080.84 × 139,331.44
  4. Step 4: Simplify right side
    375,969.68x = 78,594,195,713.61
  5. Step 5: Solve for x
    x = 78,594,195,713.61/375,969.68
  6. Step 6: Final answer
    x = 209,043.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.