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Finding the Fourth Proportional to 238,990.42, 329,810.97 and 130,097.88

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Solution

The fourth proportional to 238,990.42, 329,810.97 and 130,097.88 is: 179,537.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,990.42 : 329,810.97 = 130,097.88 : x
  2. Step 2: Convert to fraction form
    238,990.42/329,810.97 = 130,097.88/x
  3. Step 3: Cross multiply
    238,990.42x = 329,810.97 × 130,097.88
  4. Step 4: Simplify right side
    238,990.42x = 42,907,708,485.61
  5. Step 5: Solve for x
    x = 42,907,708,485.61/238,990.42
  6. Step 6: Final answer
    x = 179,537.36

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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.