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Finding the Fourth Proportional to 266,891.78, 400,282.35 and 98,368.46

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Solution

The fourth proportional to 266,891.78, 400,282.35 and 98,368.46 is: 147,532.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,891.78 : 400,282.35 = 98,368.46 : x
  2. Step 2: Convert to fraction form
    266,891.78/400,282.35 = 98,368.46/x
  3. Step 3: Cross multiply
    266,891.78x = 400,282.35 × 98,368.46
  4. Step 4: Simplify right side
    266,891.78x = 39,375,158,334.68
  5. Step 5: Solve for x
    x = 39,375,158,334.68/266,891.78
  6. Step 6: Final answer
    x = 147,532.30

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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.