Home / 266,418.09-399,631.38-88,926.03

Finding the Fourth Proportional to 266,418.09, 399,631.38 and 88,926.03

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Solution

The fourth proportional to 266,418.09, 399,631.38 and 88,926.03 is: 133,390.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,418.09 : 399,631.38 = 88,926.03 : x
  2. Step 2: Convert to fraction form
    266,418.09/399,631.38 = 88,926.03/x
  3. Step 3: Cross multiply
    266,418.09x = 399,631.38 × 88,926.03
  4. Step 4: Simplify right side
    266,418.09x = 35,537,632,086.82
  5. Step 5: Solve for x
    x = 35,537,632,086.82/266,418.09
  6. Step 6: Final answer
    x = 133,390.46

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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.