Home / 311,882.22-430,399.89-172,185.16

Finding the Fourth Proportional to 311,882.22, 430,399.89 and 172,185.16

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Solution

The fourth proportional to 311,882.22, 430,399.89 and 172,185.16 is: 237,616.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,882.22 : 430,399.89 = 172,185.16 : x
  2. Step 2: Convert to fraction form
    311,882.22/430,399.89 = 172,185.16/x
  3. Step 3: Cross multiply
    311,882.22x = 430,399.89 × 172,185.16
  4. Step 4: Simplify right side
    311,882.22x = 74,108,473,923.63
  5. Step 5: Solve for x
    x = 74,108,473,923.63/311,882.22
  6. Step 6: Final answer
    x = 237,616.86

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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.