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Finding the Fourth Proportional to 201,637.53, 302,456.31 and 83,311.92

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Solution

The fourth proportional to 201,637.53, 302,456.31 and 83,311.92 is: 124,967.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,637.53 : 302,456.31 = 83,311.92 : x
  2. Step 2: Convert to fraction form
    201,637.53/302,456.31 = 83,311.92/x
  3. Step 3: Cross multiply
    201,637.53x = 302,456.31 × 83,311.92
  4. Step 4: Simplify right side
    201,637.53x = 25,198,215,902.22
  5. Step 5: Solve for x
    x = 25,198,215,902.22/201,637.53
  6. Step 6: Final answer
    x = 124,967.89

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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.