Home / 266,979.85-400,534.01-109,208.76

Finding the Fourth Proportional to 266,979.85, 400,534.01 and 109,208.76

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Solution

The fourth proportional to 266,979.85, 400,534.01 and 109,208.76 is: 163,839.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,979.85 : 400,534.01 = 109,208.76 : x
  2. Step 2: Convert to fraction form
    266,979.85/400,534.01 = 109,208.76/x
  3. Step 3: Cross multiply
    266,979.85x = 400,534.01 × 109,208.76
  4. Step 4: Simplify right side
    266,979.85x = 43,741,821,545.71
  5. Step 5: Solve for x
    x = 43,741,821,545.71/266,979.85
  6. Step 6: Final answer
    x = 163,839.41

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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.