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Finding the Fourth Proportional to 266,805.96, 400,179.34 and 67,126.38

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Solution

The fourth proportional to 266,805.96, 400,179.34 and 67,126.38 is: 100,682.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,805.96 : 400,179.34 = 67,126.38 : x
  2. Step 2: Convert to fraction form
    266,805.96/400,179.34 = 67,126.38/x
  3. Step 3: Cross multiply
    266,805.96x = 400,179.34 × 67,126.38
  4. Step 4: Simplify right side
    266,805.96x = 26,862,590,444.99
  5. Step 5: Solve for x
    x = 26,862,590,444.99/266,805.96
  6. Step 6: Final answer
    x = 100,682.12

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1.5x scale

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.