Home / 396,492.39-547,158.13-215,204.31

Finding the Fourth Proportional to 396,492.39, 547,158.13 and 215,204.31

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Solution

The fourth proportional to 396,492.39, 547,158.13 and 215,204.31 is: 296,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,492.39 : 547,158.13 = 215,204.31 : x
  2. Step 2: Convert to fraction form
    396,492.39/547,158.13 = 215,204.31/x
  3. Step 3: Cross multiply
    396,492.39x = 547,158.13 × 215,204.31
  4. Step 4: Simplify right side
    396,492.39x = 117,750,787,289.53
  5. Step 5: Solve for x
    x = 117,750,787,289.53/396,492.39
  6. Step 6: Final answer
    x = 296,981.20

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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.