Home / 329,680.20-494,520.30-215,518.80

Finding the Fourth Proportional to 329,680.20, 494,520.30 and 215,518.80

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Solution

The fourth proportional to 329,680.20, 494,520.30 and 215,518.80 is: 323,278.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,680.20 : 494,520.30 = 215,518.80 : x
  2. Step 2: Convert to fraction form
    329,680.20/494,520.30 = 215,518.80/x
  3. Step 3: Cross multiply
    329,680.20x = 494,520.30 × 215,518.80
  4. Step 4: Simplify right side
    329,680.20x = 106,578,421,631.64
  5. Step 5: Solve for x
    x = 106,578,421,631.64/329,680.20
  6. Step 6: Final answer
    x = 323,278.20

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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.