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Finding the Fourth Proportional to 238,797.68, 329,530.40 and 131,360.90

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Solution

The fourth proportional to 238,797.68, 329,530.40 and 131,360.90 is: 181,272.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,797.68 : 329,530.40 = 131,360.90 : x
  2. Step 2: Convert to fraction form
    238,797.68/329,530.40 = 131,360.90/x
  3. Step 3: Cross multiply
    238,797.68x = 329,530.40 × 131,360.90
  4. Step 4: Simplify right side
    238,797.68x = 43,287,409,921.36
  5. Step 5: Solve for x
    x = 43,287,409,921.36/238,797.68
  6. Step 6: Final answer
    x = 181,272.32

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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.