Home / 266,449.22-399,736.64-86,534.04

Finding the Fourth Proportional to 266,449.22, 399,736.64 and 86,534.04

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Solution

The fourth proportional to 266,449.22, 399,736.64 and 86,534.04 is: 129,821.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,449.22 : 399,736.64 = 86,534.04 : x
  2. Step 2: Convert to fraction form
    266,449.22/399,736.64 = 86,534.04/x
  3. Step 3: Cross multiply
    266,449.22x = 399,736.64 × 86,534.04
  4. Step 4: Simplify right side
    266,449.22x = 34,590,826,395.23
  5. Step 5: Solve for x
    x = 34,590,826,395.23/266,449.22
  6. Step 6: Final answer
    x = 129,821.46

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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.