Home / 306,743.88-423,268.52-177,680.72

Finding the Fourth Proportional to 306,743.88, 423,268.52 and 177,680.72

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Solution

The fourth proportional to 306,743.88, 423,268.52 and 177,680.72 is: 245,177.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,743.88 : 423,268.52 = 177,680.72 : x
  2. Step 2: Convert to fraction form
    306,743.88/423,268.52 = 177,680.72/x
  3. Step 3: Cross multiply
    306,743.88x = 423,268.52 × 177,680.72
  4. Step 4: Simplify right side
    306,743.88x = 75,206,655,386.93
  5. Step 5: Solve for x
    x = 75,206,655,386.93/306,743.88
  6. Step 6: Final answer
    x = 245,177.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.