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Finding the Fourth Proportional to 366,912.70, 550,369.05 and 254,938.30

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Solution

The fourth proportional to 366,912.70, 550,369.05 and 254,938.30 is: 382,407.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,912.70 : 550,369.05 = 254,938.30 : x
  2. Step 2: Convert to fraction form
    366,912.70/550,369.05 = 254,938.30/x
  3. Step 3: Cross multiply
    366,912.70x = 550,369.05 × 254,938.30
  4. Step 4: Simplify right side
    366,912.70x = 140,310,149,979.62
  5. Step 5: Solve for x
    x = 140,310,149,979.62/366,912.70
  6. Step 6: Final answer
    x = 382,407.45

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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.