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Finding the Fourth Proportional to 266,418.52, 399,283.30 and 199,332.30

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Solution

The fourth proportional to 266,418.52, 399,283.30 and 199,332.30 is: 298,740.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,418.52 : 399,283.30 = 199,332.30 : x
  2. Step 2: Convert to fraction form
    266,418.52/399,283.30 = 199,332.30/x
  3. Step 3: Cross multiply
    266,418.52x = 399,283.30 × 199,332.30
  4. Step 4: Simplify right side
    266,418.52x = 79,590,058,540.59
  5. Step 5: Solve for x
    x = 79,590,058,540.59/266,418.52
  6. Step 6: Final answer
    x = 298,740.71

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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.