Home / 325,215.87-487,318.09-225,570.75

Finding the Fourth Proportional to 325,215.87, 487,318.09 and 225,570.75

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Solution

The fourth proportional to 325,215.87, 487,318.09 and 225,570.75 is: 338,005.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,215.87 : 487,318.09 = 225,570.75 : x
  2. Step 2: Convert to fraction form
    325,215.87/487,318.09 = 225,570.75/x
  3. Step 3: Cross multiply
    325,215.87x = 487,318.09 × 225,570.75
  4. Step 4: Simplify right side
    325,215.87x = 109,924,707,049.87
  5. Step 5: Solve for x
    x = 109,924,707,049.87/325,215.87
  6. Step 6: Final answer
    x = 338,005.36

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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.