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Finding the Fourth Proportional to 238,660.80, 329,352.80 and 131,237.60

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Solution

The fourth proportional to 238,660.80, 329,352.80 and 131,237.60 is: 181,108.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,660.80 : 329,352.80 = 131,237.60 : x
  2. Step 2: Convert to fraction form
    238,660.80/329,352.80 = 131,237.60/x
  3. Step 3: Cross multiply
    238,660.80x = 329,352.80 × 131,237.60
  4. Step 4: Simplify right side
    238,660.80x = 43,223,471,025.28
  5. Step 5: Solve for x
    x = 43,223,471,025.28/238,660.80
  6. Step 6: Final answer
    x = 181,108.38

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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.