Home / 238,648.64-329,328.16-131,218.56

Finding the Fourth Proportional to 238,648.64, 329,328.16 and 131,218.56

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Solution

The fourth proportional to 238,648.64, 329,328.16 and 131,218.56 is: 181,077.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,648.64 : 329,328.16 = 131,218.56 : x
  2. Step 2: Convert to fraction form
    238,648.64/329,328.16 = 131,218.56/x
  3. Step 3: Cross multiply
    238,648.64x = 329,328.16 × 131,218.56
  4. Step 4: Simplify right side
    238,648.64x = 43,213,966,922.65
  5. Step 5: Solve for x
    x = 43,213,966,922.65/238,648.64
  6. Step 6: Final answer
    x = 181,077.78

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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.