Home / 231,930.21-317,665.52-218,312.49

Finding the Fourth Proportional to 231,930.21, 317,665.52 and 218,312.49

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Solution

The fourth proportional to 231,930.21, 317,665.52 and 218,312.49 is: 299,013.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,930.21 : 317,665.52 = 218,312.49 : x
  2. Step 2: Convert to fraction form
    231,930.21/317,665.52 = 218,312.49/x
  3. Step 3: Cross multiply
    231,930.21x = 317,665.52 × 218,312.49
  4. Step 4: Simplify right side
    231,930.21x = 69,350,351,204.13
  5. Step 5: Solve for x
    x = 69,350,351,204.13/231,930.21
  6. Step 6: Final answer
    x = 299,013.88

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.