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Finding the Fourth Proportional to 465,173.28, 642,039.18 and 283,846.38

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Solution

The fourth proportional to 465,173.28, 642,039.18 and 283,846.38 is: 391,769.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,173.28 : 642,039.18 = 283,846.38 : x
  2. Step 2: Convert to fraction form
    465,173.28/642,039.18 = 283,846.38/x
  3. Step 3: Cross multiply
    465,173.28x = 642,039.18 × 283,846.38
  4. Step 4: Simplify right side
    465,173.28x = 182,240,497,061.17
  5. Step 5: Solve for x
    x = 182,240,497,061.17/465,173.28
  6. Step 6: Final answer
    x = 391,769.06

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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.