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Finding the Fourth Proportional to 491,615.12, 737,506.92 and 225,398.42

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Solution

The fourth proportional to 491,615.12, 737,506.92 and 225,398.42 is: 338,136.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,615.12 : 737,506.92 = 225,398.42 : x
  2. Step 2: Convert to fraction form
    491,615.12/737,506.92 = 225,398.42/x
  3. Step 3: Cross multiply
    491,615.12x = 737,506.92 × 225,398.42
  4. Step 4: Simplify right side
    491,615.12x = 166,232,894,507.07
  5. Step 5: Solve for x
    x = 166,232,894,507.07/491,615.12
  6. Step 6: Final answer
    x = 338,136.25

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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.