Home / 238,712.28-329,431.32-131,290.56

Finding the Fourth Proportional to 238,712.28, 329,431.32 and 131,290.56

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Solution

The fourth proportional to 238,712.28, 329,431.32 and 131,290.56 is: 181,185.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,712.28 : 329,431.32 = 131,290.56 : x
  2. Step 2: Convert to fraction form
    238,712.28/329,431.32 = 131,290.56/x
  3. Step 3: Cross multiply
    238,712.28x = 329,431.32 × 131,290.56
  4. Step 4: Simplify right side
    238,712.28x = 43,251,222,484.34
  5. Step 5: Solve for x
    x = 43,251,222,484.34/238,712.28
  6. Step 6: Final answer
    x = 181,185.58

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1.5x scale

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.