Home / 396,681.18-547,517.25-243,756.42

Finding the Fourth Proportional to 396,681.18, 547,517.25 and 243,756.42

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Solution

The fourth proportional to 396,681.18, 547,517.25 and 243,756.42 is: 336,443.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,681.18 : 547,517.25 = 243,756.42 : x
  2. Step 2: Convert to fraction form
    396,681.18/547,517.25 = 243,756.42/x
  3. Step 3: Cross multiply
    396,681.18x = 547,517.25 × 243,756.42
  4. Step 4: Simplify right side
    396,681.18x = 133,460,844,748.25
  5. Step 5: Solve for x
    x = 133,460,844,748.25/396,681.18
  6. Step 6: Final answer
    x = 336,443.60

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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.