Home / 266,812.20-400,278-140,511.90

Finding the Fourth Proportional to 266,812.20, 400,278 and 140,511.90

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Solution

The fourth proportional to 266,812.20, 400,278 and 140,511.90 is: 210,799.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,812.20 : 400,278 = 140,511.90 : x
  2. Step 2: Convert to fraction form
    266,812.20/400,278 = 140,511.90/x
  3. Step 3: Cross multiply
    266,812.20x = 400,278 × 140,511.90
  4. Step 4: Simplify right side
    266,812.20x = 56,243,822,308.20
  5. Step 5: Solve for x
    x = 56,243,822,308.20/266,812.20
  6. Step 6: Final answer
    x = 210,799.29

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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.