Home / 231,048.60-318,671.51-198,836.79

Finding the Fourth Proportional to 231,048.60, 318,671.51 and 198,836.79

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Solution

The fourth proportional to 231,048.60, 318,671.51 and 198,836.79 is: 274,243.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,048.60 : 318,671.51 = 198,836.79 : x
  2. Step 2: Convert to fraction form
    231,048.60/318,671.51 = 198,836.79/x
  3. Step 3: Cross multiply
    231,048.60x = 318,671.51 × 198,836.79
  4. Step 4: Simplify right side
    231,048.60x = 63,363,619,118.67
  5. Step 5: Solve for x
    x = 63,363,619,118.67/231,048.60
  6. Step 6: Final answer
    x = 274,243.68

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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.