Home / 238,868.55-329,640.91-131,440.90

Finding the Fourth Proportional to 238,868.55, 329,640.91 and 131,440.90

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Solution

The fourth proportional to 238,868.55, 329,640.91 and 131,440.90 is: 181,389.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,868.55 : 329,640.91 = 131,440.90 : x
  2. Step 2: Convert to fraction form
    238,868.55/329,640.91 = 131,440.90/x
  3. Step 3: Cross multiply
    238,868.55x = 329,640.91 × 131,440.90
  4. Step 4: Simplify right side
    238,868.55x = 43,328,296,239.01
  5. Step 5: Solve for x
    x = 43,328,296,239.01/238,868.55
  6. Step 6: Final answer
    x = 181,389.71

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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.