Home / 278,309.22-417,131.69-151,981.26

Finding the Fourth Proportional to 278,309.22, 417,131.69 and 151,981.26

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Solution

The fourth proportional to 278,309.22, 417,131.69 and 151,981.26 is: 227,790.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,309.22 : 417,131.69 = 151,981.26 : x
  2. Step 2: Convert to fraction form
    278,309.22/417,131.69 = 151,981.26/x
  3. Step 3: Cross multiply
    278,309.22x = 417,131.69 × 151,981.26
  4. Step 4: Simplify right side
    278,309.22x = 63,396,199,072.22
  5. Step 5: Solve for x
    x = 63,396,199,072.22/278,309.22
  6. Step 6: Final answer
    x = 227,790.51

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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.