Home / 266,922.30-400,320.27-77,332.49

Finding the Fourth Proportional to 266,922.30, 400,320.27 and 77,332.49

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Solution

The fourth proportional to 266,922.30, 400,320.27 and 77,332.49 is: 115,980.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,922.30 : 400,320.27 = 77,332.49 : x
  2. Step 2: Convert to fraction form
    266,922.30/400,320.27 = 77,332.49/x
  3. Step 3: Cross multiply
    266,922.30x = 400,320.27 × 77,332.49
  4. Step 4: Simplify right side
    266,922.30x = 30,957,761,274.97
  5. Step 5: Solve for x
    x = 30,957,761,274.97/266,922.30
  6. Step 6: Final answer
    x = 115,980.42

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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.