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Finding the Fourth Proportional to 366,874.80, 550,312.20 and 330,133.20

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Solution

The fourth proportional to 366,874.80, 550,312.20 and 330,133.20 is: 495,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,874.80 : 550,312.20 = 330,133.20 : x
  2. Step 2: Convert to fraction form
    366,874.80/550,312.20 = 330,133.20/x
  3. Step 3: Cross multiply
    366,874.80x = 550,312.20 × 330,133.20
  4. Step 4: Simplify right side
    366,874.80x = 181,676,327,585.04
  5. Step 5: Solve for x
    x = 181,676,327,585.04/366,874.80
  6. Step 6: Final answer
    x = 495,199.80

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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.