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Finding the Fourth Proportional to 445,402.28, 614,510.66 and 251,791.29

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Solution

The fourth proportional to 445,402.28, 614,510.66 and 251,791.29 is: 347,390.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,402.28 : 614,510.66 = 251,791.29 : x
  2. Step 2: Convert to fraction form
    445,402.28/614,510.66 = 251,791.29/x
  3. Step 3: Cross multiply
    445,402.28x = 614,510.66 × 251,791.29
  4. Step 4: Simplify right side
    445,402.28x = 154,728,432,429.63
  5. Step 5: Solve for x
    x = 154,728,432,429.63/445,402.28
  6. Step 6: Final answer
    x = 347,390.30

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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.