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Finding the Fourth Proportional to 266,457.16, 399,669.30 and 88,949.29

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Solution

The fourth proportional to 266,457.16, 399,669.30 and 88,949.29 is: 133,418.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,457.16 : 399,669.30 = 88,949.29 : x
  2. Step 2: Convert to fraction form
    266,457.16/399,669.30 = 88,949.29/x
  3. Step 3: Cross multiply
    266,457.16x = 399,669.30 × 88,949.29
  4. Step 4: Simplify right side
    266,457.16x = 35,550,300,469.80
  5. Step 5: Solve for x
    x = 35,550,300,469.80/266,457.16
  6. Step 6: Final answer
    x = 133,418.45

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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.