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Finding the Fourth Proportional to 266,326.26, 399,490.89 and 88,832.78

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Solution

The fourth proportional to 266,326.26, 399,490.89 and 88,832.78 is: 133,249.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,326.26 : 399,490.89 = 88,832.78 : x
  2. Step 2: Convert to fraction form
    266,326.26/399,490.89 = 88,832.78/x
  3. Step 3: Cross multiply
    266,326.26x = 399,490.89 × 88,832.78
  4. Step 4: Simplify right side
    266,326.26x = 35,487,886,343.37
  5. Step 5: Solve for x
    x = 35,487,886,343.37/266,326.26
  6. Step 6: Final answer
    x = 133,249.67

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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.