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Finding the Fourth Proportional to 324,082.80, 485,087.40 and 299,199.60

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Solution

The fourth proportional to 324,082.80, 485,087.40 and 299,199.60 is: 447,842.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,082.80 : 485,087.40 = 299,199.60 : x
  2. Step 2: Convert to fraction form
    324,082.80/485,087.40 = 299,199.60/x
  3. Step 3: Cross multiply
    324,082.80x = 485,087.40 × 299,199.60
  4. Step 4: Simplify right side
    324,082.80x = 145,137,956,045.04
  5. Step 5: Solve for x
    x = 145,137,956,045.04/324,082.80
  6. Step 6: Final answer
    x = 447,842.21

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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.