Home / 238,862.50-329,634.70-131,431.58

Finding the Fourth Proportional to 238,862.50, 329,634.70 and 131,431.58

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Solution

The fourth proportional to 238,862.50, 329,634.70 and 131,431.58 is: 181,378.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,862.50 : 329,634.70 = 131,431.58 : x
  2. Step 2: Convert to fraction form
    238,862.50/329,634.70 = 131,431.58/x
  3. Step 3: Cross multiply
    238,862.50x = 329,634.70 × 131,431.58
  4. Step 4: Simplify right side
    238,862.50x = 43,324,409,443.83
  5. Step 5: Solve for x
    x = 43,324,409,443.83/238,862.50
  6. Step 6: Final answer
    x = 181,378.03

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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.