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Finding the Fourth Proportional to 366,964.20, 550,446.30 and 254,989.80

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Solution

The fourth proportional to 366,964.20, 550,446.30 and 254,989.80 is: 382,484.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,964.20 : 550,446.30 = 254,989.80 : x
  2. Step 2: Convert to fraction form
    366,964.20/550,446.30 = 254,989.80/x
  3. Step 3: Cross multiply
    366,964.20x = 550,446.30 × 254,989.80
  4. Step 4: Simplify right side
    366,964.20x = 140,358,191,947.74
  5. Step 5: Solve for x
    x = 140,358,191,947.74/366,964.20
  6. Step 6: Final answer
    x = 382,484.70

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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.