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Finding the Fourth Proportional to 344,711.70, 517,359.15 and 155,463.30

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Solution

The fourth proportional to 344,711.70, 517,359.15 and 155,463.30 is: 233,326.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,711.70 : 517,359.15 = 155,463.30 : x
  2. Step 2: Convert to fraction form
    344,711.70/517,359.15 = 155,463.30/x
  3. Step 3: Cross multiply
    344,711.70x = 517,359.15 × 155,463.30
  4. Step 4: Simplify right side
    344,711.70x = 80,430,360,744.20
  5. Step 5: Solve for x
    x = 80,430,360,744.20/344,711.70
  6. Step 6: Final answer
    x = 233,326.46

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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.