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Finding the Fourth Proportional to 366,863.20, 550,294.80 and 320,207.20

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Solution

The fourth proportional to 366,863.20, 550,294.80 and 320,207.20 is: 480,310.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,863.20 : 550,294.80 = 320,207.20 : x
  2. Step 2: Convert to fraction form
    366,863.20/550,294.80 = 320,207.20/x
  3. Step 3: Cross multiply
    366,863.20x = 550,294.80 × 320,207.20
  4. Step 4: Simplify right side
    366,863.20x = 176,208,357,082.56
  5. Step 5: Solve for x
    x = 176,208,357,082.56/366,863.20
  6. Step 6: Final answer
    x = 480,310.80

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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.