Home / 396,487.29-547,152.83-215,199.17

Finding the Fourth Proportional to 396,487.29, 547,152.83 and 215,199.17

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Solution

The fourth proportional to 396,487.29, 547,152.83 and 215,199.17 is: 296,975.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,487.29 : 547,152.83 = 215,199.17 : x
  2. Step 2: Convert to fraction form
    396,487.29/547,152.83 = 215,199.17/x
  3. Step 3: Cross multiply
    396,487.29x = 547,152.83 × 215,199.17
  4. Step 4: Simplify right side
    396,487.29x = 117,746,831,874.39
  5. Step 5: Solve for x
    x = 117,746,831,874.39/396,487.29
  6. Step 6: Final answer
    x = 296,975.05

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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.