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Finding the Fourth Proportional to 266,493.06, 367,749.42 and 145,638.36

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Solution

The fourth proportional to 266,493.06, 367,749.42 and 145,638.36 is: 200,974.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,493.06 : 367,749.42 = 145,638.36 : x
  2. Step 2: Convert to fraction form
    266,493.06/367,749.42 = 145,638.36/x
  3. Step 3: Cross multiply
    266,493.06x = 367,749.42 × 145,638.36
  4. Step 4: Simplify right side
    266,493.06x = 53,558,422,419.75
  5. Step 5: Solve for x
    x = 53,558,422,419.75/266,493.06
  6. Step 6: Final answer
    x = 200,974.92

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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.