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Finding the Fourth Proportional to 375,360.31, 517,949.89 and 299,072.71

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Solution

The fourth proportional to 375,360.31, 517,949.89 and 299,072.71 is: 412,682.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,360.31 : 517,949.89 = 299,072.71 : x
  2. Step 2: Convert to fraction form
    375,360.31/517,949.89 = 299,072.71/x
  3. Step 3: Cross multiply
    375,360.31x = 517,949.89 × 299,072.71
  4. Step 4: Simplify right side
    375,360.31x = 154,904,677,246.50
  5. Step 5: Solve for x
    x = 154,904,677,246.50/375,360.31
  6. Step 6: Final answer
    x = 412,682.62

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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.