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Finding the Fourth Proportional to 266,536.98, 399,559.43 and 133,301.30

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Solution

The fourth proportional to 266,536.98, 399,559.43 and 133,301.30 is: 199,828.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,536.98 : 399,559.43 = 133,301.30 : x
  2. Step 2: Convert to fraction form
    266,536.98/399,559.43 = 133,301.30/x
  3. Step 3: Cross multiply
    266,536.98x = 399,559.43 × 133,301.30
  4. Step 4: Simplify right side
    266,536.98x = 53,261,789,781.72
  5. Step 5: Solve for x
    x = 53,261,789,781.72/266,536.98
  6. Step 6: Final answer
    x = 199,828.89

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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.