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Finding the Fourth Proportional to 366,976.80, 550,465.20 and 100,778.40

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Solution

The fourth proportional to 366,976.80, 550,465.20 and 100,778.40 is: 151,167.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,976.80 : 550,465.20 = 100,778.40 : x
  2. Step 2: Convert to fraction form
    366,976.80/550,465.20 = 100,778.40/x
  3. Step 3: Cross multiply
    366,976.80x = 550,465.20 × 100,778.40
  4. Step 4: Simplify right side
    366,976.80x = 55,475,002,111.68
  5. Step 5: Solve for x
    x = 55,475,002,111.68/366,976.80
  6. Step 6: Final answer
    x = 151,167.60

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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.