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Finding the Fourth Proportional to 396,060, 546,597.36 and 217,246.56

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Solution

The fourth proportional to 396,060, 546,597.36 and 217,246.56 is: 299,819.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,060 : 546,597.36 = 217,246.56 : x
  2. Step 2: Convert to fraction form
    396,060/546,597.36 = 217,246.56/x
  3. Step 3: Cross multiply
    396,060x = 546,597.36 × 217,246.56
  4. Step 4: Simplify right side
    396,060x = 118,746,396,165.08
  5. Step 5: Solve for x
    x = 118,746,396,165.08/396,060
  6. Step 6: Final answer
    x = 299,819.21

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1.5x scale

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.