Home / 238,418.14-329,019.26-130,990.40

Finding the Fourth Proportional to 238,418.14, 329,019.26 and 130,990.40

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Solution

The fourth proportional to 238,418.14, 329,019.26 and 130,990.40 is: 180,767.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,418.14 : 329,019.26 = 130,990.40 : x
  2. Step 2: Convert to fraction form
    238,418.14/329,019.26 = 130,990.40/x
  3. Step 3: Cross multiply
    238,418.14x = 329,019.26 × 130,990.40
  4. Step 4: Simplify right side
    238,418.14x = 43,098,364,475.10
  5. Step 5: Solve for x
    x = 43,098,364,475.10/238,418.14
  6. Step 6: Final answer
    x = 180,767.98

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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.