Home / 325,218.87-487,322.58-225,573.75

Finding the Fourth Proportional to 325,218.87, 487,322.58 and 225,573.75

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Solution

The fourth proportional to 325,218.87, 487,322.58 and 225,573.75 is: 338,009.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,218.87 : 487,322.58 = 225,573.75 : x
  2. Step 2: Convert to fraction form
    325,218.87/487,322.58 = 225,573.75/x
  3. Step 3: Cross multiply
    325,218.87x = 487,322.58 × 225,573.75
  4. Step 4: Simplify right side
    325,218.87x = 109,927,181,830.28
  5. Step 5: Solve for x
    x = 109,927,181,830.28/325,218.87
  6. Step 6: Final answer
    x = 338,009.85

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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.