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Finding the Fourth Proportional to 376,960.70, 565,331.70 and 137,046.80

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Solution

The fourth proportional to 376,960.70, 565,331.70 and 137,046.80 is: 205,530.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,960.70 : 565,331.70 = 137,046.80 : x
  2. Step 2: Convert to fraction form
    376,960.70/565,331.70 = 137,046.80/x
  3. Step 3: Cross multiply
    376,960.70x = 565,331.70 × 137,046.80
  4. Step 4: Simplify right side
    376,960.70x = 77,476,900,423.56
  5. Step 5: Solve for x
    x = 77,476,900,423.56/376,960.70
  6. Step 6: Final answer
    x = 205,530.45

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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.