Home / 231,015.66-318,804.27-135,523.98

Finding the Fourth Proportional to 231,015.66, 318,804.27 and 135,523.98

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Solution

The fourth proportional to 231,015.66, 318,804.27 and 135,523.98 is: 187,024.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,015.66 : 318,804.27 = 135,523.98 : x
  2. Step 2: Convert to fraction form
    231,015.66/318,804.27 = 135,523.98/x
  3. Step 3: Cross multiply
    231,015.66x = 318,804.27 × 135,523.98
  4. Step 4: Simplify right side
    231,015.66x = 43,205,623,511.39
  5. Step 5: Solve for x
    x = 43,205,623,511.39/231,015.66
  6. Step 6: Final answer
    x = 187,024.65

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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.