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Finding the Fourth Proportional to 238,548.60, 329,198.88 and 131,120.40

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Solution

The fourth proportional to 238,548.60, 329,198.88 and 131,120.40 is: 180,947.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,548.60 : 329,198.88 = 131,120.40 : x
  2. Step 2: Convert to fraction form
    238,548.60/329,198.88 = 131,120.40/x
  3. Step 3: Cross multiply
    238,548.60x = 329,198.88 × 131,120.40
  4. Step 4: Simplify right side
    238,548.60x = 43,164,688,825.15
  5. Step 5: Solve for x
    x = 43,164,688,825.15/238,548.60
  6. Step 6: Final answer
    x = 180,947.15

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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.