Home / 217,799.62-300,335.61-172,405.06

Finding the Fourth Proportional to 217,799.62, 300,335.61 and 172,405.06

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Solution

The fourth proportional to 217,799.62, 300,335.61 and 172,405.06 is: 237,738.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,799.62 : 300,335.61 = 172,405.06 : x
  2. Step 2: Convert to fraction form
    217,799.62/300,335.61 = 172,405.06/x
  3. Step 3: Cross multiply
    217,799.62x = 300,335.61 × 172,405.06
  4. Step 4: Simplify right side
    217,799.62x = 51,779,378,862.19
  5. Step 5: Solve for x
    x = 51,779,378,862.19/217,799.62
  6. Step 6: Final answer
    x = 237,738.61

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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.