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Finding the Fourth Proportional to 266,245.50, 367,419.42 and 145,387.02

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Solution

The fourth proportional to 266,245.50, 367,419.42 and 145,387.02 is: 200,634.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,245.50 : 367,419.42 = 145,387.02 : x
  2. Step 2: Convert to fraction form
    266,245.50/367,419.42 = 145,387.02/x
  3. Step 3: Cross multiply
    266,245.50x = 367,419.42 × 145,387.02
  4. Step 4: Simplify right side
    266,245.50x = 53,418,014,563.93
  5. Step 5: Solve for x
    x = 53,418,014,563.93/266,245.50
  6. Step 6: Final answer
    x = 200,634.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.