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Finding the Fourth Proportional to 366,520.40, 550,190.20 and 342,456.40

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Solution

The fourth proportional to 366,520.40, 550,190.20 and 342,456.40 is: 514,067.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,520.40 : 550,190.20 = 342,456.40 : x
  2. Step 2: Convert to fraction form
    366,520.40/550,190.20 = 342,456.40/x
  3. Step 3: Cross multiply
    366,520.40x = 550,190.20 × 342,456.40
  4. Step 4: Simplify right side
    366,520.40x = 188,416,155,207.28
  5. Step 5: Solve for x
    x = 188,416,155,207.28/366,520.40
  6. Step 6: Final answer
    x = 514,067.31

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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.