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Finding the Fourth Proportional to 366,834.20, 550,251.30 and 209,370.20

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Solution

The fourth proportional to 366,834.20, 550,251.30 and 209,370.20 is: 314,055.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,834.20 : 550,251.30 = 209,370.20 : x
  2. Step 2: Convert to fraction form
    366,834.20/550,251.30 = 209,370.20/x
  3. Step 3: Cross multiply
    366,834.20x = 550,251.30 × 209,370.20
  4. Step 4: Simplify right side
    366,834.20x = 115,206,224,731.26
  5. Step 5: Solve for x
    x = 115,206,224,731.26/366,834.20
  6. Step 6: Final answer
    x = 314,055.30

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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.