Home / 301,009.77-451,589.38-121,107.15

Finding the Fourth Proportional to 301,009.77, 451,589.38 and 121,107.15

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Solution

The fourth proportional to 301,009.77, 451,589.38 and 121,107.15 is: 181,690.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,009.77 : 451,589.38 = 121,107.15 : x
  2. Step 2: Convert to fraction form
    301,009.77/451,589.38 = 121,107.15/x
  3. Step 3: Cross multiply
    301,009.77x = 451,589.38 × 121,107.15
  4. Step 4: Simplify right side
    301,009.77x = 54,690,702,479.30
  5. Step 5: Solve for x
    x = 54,690,702,479.30/301,009.77
  6. Step 6: Final answer
    x = 181,690.79

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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.