Home / 266,278.13-399,510.49-166,321.30

Finding the Fourth Proportional to 266,278.13, 399,510.49 and 166,321.30

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Solution

The fourth proportional to 266,278.13, 399,510.49 and 166,321.30 is: 249,540.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,278.13 : 399,510.49 = 166,321.30 : x
  2. Step 2: Convert to fraction form
    266,278.13/399,510.49 = 166,321.30/x
  3. Step 3: Cross multiply
    266,278.13x = 399,510.49 × 166,321.30
  4. Step 4: Simplify right side
    266,278.13x = 66,447,104,060.44
  5. Step 5: Solve for x
    x = 66,447,104,060.44/266,278.13
  6. Step 6: Final answer
    x = 249,540.22

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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.