Home / 278,147.40-417,221.10-151,738.80

Finding the Fourth Proportional to 278,147.40, 417,221.10 and 151,738.80

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Solution

The fourth proportional to 278,147.40, 417,221.10 and 151,738.80 is: 227,608.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,147.40 : 417,221.10 = 151,738.80 : x
  2. Step 2: Convert to fraction form
    278,147.40/417,221.10 = 151,738.80/x
  3. Step 3: Cross multiply
    278,147.40x = 417,221.10 × 151,738.80
  4. Step 4: Simplify right side
    278,147.40x = 63,308,629,048.68
  5. Step 5: Solve for x
    x = 63,308,629,048.68/278,147.40
  6. Step 6: Final answer
    x = 227,608.20

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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.