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Finding the Fourth Proportional to 238,995.12, 329,825.12 and 131,564.01

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Solution

The fourth proportional to 238,995.12, 329,825.12 and 131,564.01 is: 181,564.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,995.12 : 329,825.12 = 131,564.01 : x
  2. Step 2: Convert to fraction form
    238,995.12/329,825.12 = 131,564.01/x
  3. Step 3: Cross multiply
    238,995.12x = 329,825.12 × 131,564.01
  4. Step 4: Simplify right side
    238,995.12x = 43,393,115,964.96
  5. Step 5: Solve for x
    x = 43,393,115,964.96/238,995.12
  6. Step 6: Final answer
    x = 181,564.86

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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.