Home / 280,932.06-420,993.90-120,964.08

Finding the Fourth Proportional to 280,932.06, 420,993.90 and 120,964.08

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Solution

The fourth proportional to 280,932.06, 420,993.90 and 120,964.08 is: 181,272.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,932.06 : 420,993.90 = 120,964.08 : x
  2. Step 2: Convert to fraction form
    280,932.06/420,993.90 = 120,964.08/x
  3. Step 3: Cross multiply
    280,932.06x = 420,993.90 × 120,964.08
  4. Step 4: Simplify right side
    280,932.06x = 50,925,139,799.11
  5. Step 5: Solve for x
    x = 50,925,139,799.11/280,932.06
  6. Step 6: Final answer
    x = 181,272.08

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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.