Home / 231,418.49-318,786.66-197,315.87

Finding the Fourth Proportional to 231,418.49, 318,786.66 and 197,315.87

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Solution

The fourth proportional to 231,418.49, 318,786.66 and 197,315.87 is: 271,809.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,418.49 : 318,786.66 = 197,315.87 : x
  2. Step 2: Convert to fraction form
    231,418.49/318,786.66 = 197,315.87/x
  3. Step 3: Cross multiply
    231,418.49x = 318,786.66 × 197,315.87
  4. Step 4: Simplify right side
    231,418.49x = 62,901,665,568.36
  5. Step 5: Solve for x
    x = 62,901,665,568.36/231,418.49
  6. Step 6: Final answer
    x = 271,809.17

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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.