Home / 278,346.20-417,519.30-120,882.20

Finding the Fourth Proportional to 278,346.20, 417,519.30 and 120,882.20

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Solution

The fourth proportional to 278,346.20, 417,519.30 and 120,882.20 is: 181,323.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,346.20 : 417,519.30 = 120,882.20 : x
  2. Step 2: Convert to fraction form
    278,346.20/417,519.30 = 120,882.20/x
  3. Step 3: Cross multiply
    278,346.20x = 417,519.30 × 120,882.20
  4. Step 4: Simplify right side
    278,346.20x = 50,470,651,526.46
  5. Step 5: Solve for x
    x = 50,470,651,526.46/278,346.20
  6. Step 6: Final answer
    x = 181,323.30

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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.