Home / 325,306.72-487,979.20-125,628.14

Finding the Fourth Proportional to 325,306.72, 487,979.20 and 125,628.14

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Solution

The fourth proportional to 325,306.72, 487,979.20 and 125,628.14 is: 188,449.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,306.72 : 487,979.20 = 125,628.14 : x
  2. Step 2: Convert to fraction form
    325,306.72/487,979.20 = 125,628.14/x
  3. Step 3: Cross multiply
    325,306.72x = 487,979.20 × 125,628.14
  4. Step 4: Simplify right side
    325,306.72x = 61,303,919,254.69
  5. Step 5: Solve for x
    x = 61,303,919,254.69/325,306.72
  6. Step 6: Final answer
    x = 188,449.59

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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.