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Finding the Fourth Proportional to 266,297.25, 399,642.72 and 126,055.89

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Solution

The fourth proportional to 266,297.25, 399,642.72 and 126,055.89 is: 189,177.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,297.25 : 399,642.72 = 126,055.89 : x
  2. Step 2: Convert to fraction form
    266,297.25/399,642.72 = 126,055.89/x
  3. Step 3: Cross multiply
    266,297.25x = 399,642.72 × 126,055.89
  4. Step 4: Simplify right side
    266,297.25x = 50,377,318,751.62
  5. Step 5: Solve for x
    x = 50,377,318,751.62/266,297.25
  6. Step 6: Final answer
    x = 189,177.01

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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.