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Finding the Fourth Proportional to 366,920.80, 550,381.20 and 330,179.20

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Solution

The fourth proportional to 366,920.80, 550,381.20 and 330,179.20 is: 495,268.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,920.80 : 550,381.20 = 330,179.20 : x
  2. Step 2: Convert to fraction form
    366,920.80/550,381.20 = 330,179.20/x
  3. Step 3: Cross multiply
    366,920.80x = 550,381.20 × 330,179.20
  4. Step 4: Simplify right side
    366,920.80x = 181,724,424,311.04
  5. Step 5: Solve for x
    x = 181,724,424,311.04/366,920.80
  6. Step 6: Final answer
    x = 495,268.80

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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.