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Finding the Fourth Proportional to 396,432.90, 594,122.85 and 216,055.22

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Solution

The fourth proportional to 396,432.90, 594,122.85 and 216,055.22 is: 323,795.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,432.90 : 594,122.85 = 216,055.22 : x
  2. Step 2: Convert to fraction form
    396,432.90/594,122.85 = 216,055.22/x
  3. Step 3: Cross multiply
    396,432.90x = 594,122.85 × 216,055.22
  4. Step 4: Simplify right side
    396,432.90x = 128,363,340,093.16
  5. Step 5: Solve for x
    x = 128,363,340,093.16/396,432.90
  6. Step 6: Final answer
    x = 323,795.88

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1.5x scale

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.