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Finding the Fourth Proportional to 329,060.80, 493,591.20 and 217,086.40

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Solution

The fourth proportional to 329,060.80, 493,591.20 and 217,086.40 is: 325,629.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,060.80 : 493,591.20 = 217,086.40 : x
  2. Step 2: Convert to fraction form
    329,060.80/493,591.20 = 217,086.40/x
  3. Step 3: Cross multiply
    329,060.80x = 493,591.20 × 217,086.40
  4. Step 4: Simplify right side
    329,060.80x = 107,151,936,679.68
  5. Step 5: Solve for x
    x = 107,151,936,679.68/329,060.80
  6. Step 6: Final answer
    x = 325,629.60

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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.