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Finding the Fourth Proportional to 266,959.88, 400,435.08 and 67,275.80

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Solution

The fourth proportional to 266,959.88, 400,435.08 and 67,275.80 is: 100,912.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,959.88 : 400,435.08 = 67,275.80 : x
  2. Step 2: Convert to fraction form
    266,959.88/400,435.08 = 67,275.80/x
  3. Step 3: Cross multiply
    266,959.88x = 400,435.08 × 67,275.80
  4. Step 4: Simplify right side
    266,959.88x = 26,939,590,355.06
  5. Step 5: Solve for x
    x = 26,939,590,355.06/266,959.88
  6. Step 6: Final answer
    x = 100,912.51

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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.