Home / 205,055.20-307,910.85-155,191.60

Finding the Fourth Proportional to 205,055.20, 307,910.85 and 155,191.60

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Solution

The fourth proportional to 205,055.20, 307,910.85 and 155,191.60 is: 233,035.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,055.20 : 307,910.85 = 155,191.60 : x
  2. Step 2: Convert to fraction form
    205,055.20/307,910.85 = 155,191.60/x
  3. Step 3: Cross multiply
    205,055.20x = 307,910.85 × 155,191.60
  4. Step 4: Simplify right side
    205,055.20x = 47,785,177,468.86
  5. Step 5: Solve for x
    x = 47,785,177,468.86/205,055.20
  6. Step 6: Final answer
    x = 233,035.68

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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.