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Finding the Fourth Proportional to 375,163.02, 517,721.76 and 203,080.14

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Solution

The fourth proportional to 375,163.02, 517,721.76 and 203,080.14 is: 280,248.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,163.02 : 517,721.76 = 203,080.14 : x
  2. Step 2: Convert to fraction form
    375,163.02/517,721.76 = 203,080.14/x
  3. Step 3: Cross multiply
    375,163.02x = 517,721.76 × 203,080.14
  4. Step 4: Simplify right side
    375,163.02x = 105,139,007,501.85
  5. Step 5: Solve for x
    x = 105,139,007,501.85/375,163.02
  6. Step 6: Final answer
    x = 280,248.86

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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.