Home / 278,286.18-417,458.97-91,298.22

Finding the Fourth Proportional to 278,286.18, 417,458.97 and 91,298.22

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Solution

The fourth proportional to 278,286.18, 417,458.97 and 91,298.22 is: 136,957.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,286.18 : 417,458.97 = 91,298.22 : x
  2. Step 2: Convert to fraction form
    278,286.18/417,458.97 = 91,298.22/x
  3. Step 3: Cross multiply
    278,286.18x = 417,458.97 × 91,298.22
  4. Step 4: Simplify right side
    278,286.18x = 38,113,260,884.03
  5. Step 5: Solve for x
    x = 38,113,260,884.03/278,286.18
  6. Step 6: Final answer
    x = 136,957.07

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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.