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Finding the Fourth Proportional to 366,949.20, 550,423.80 and 130,315.80

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Solution

The fourth proportional to 366,949.20, 550,423.80 and 130,315.80 is: 195,473.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,949.20 : 550,423.80 = 130,315.80 : x
  2. Step 2: Convert to fraction form
    366,949.20/550,423.80 = 130,315.80/x
  3. Step 3: Cross multiply
    366,949.20x = 550,423.80 × 130,315.80
  4. Step 4: Simplify right side
    366,949.20x = 71,728,917,836.04
  5. Step 5: Solve for x
    x = 71,728,917,836.04/366,949.20
  6. Step 6: Final answer
    x = 195,473.70

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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.