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Finding the Fourth Proportional to 238,389.81, 357,576.60 and 111,959.34

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Solution

The fourth proportional to 238,389.81, 357,576.60 and 111,959.34 is: 167,935.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,389.81 : 357,576.60 = 111,959.34 : x
  2. Step 2: Convert to fraction form
    238,389.81/357,576.60 = 111,959.34/x
  3. Step 3: Cross multiply
    238,389.81x = 357,576.60 × 111,959.34
  4. Step 4: Simplify right side
    238,389.81x = 40,034,040,135.44
  5. Step 5: Solve for x
    x = 40,034,040,135.44/238,389.81
  6. Step 6: Final answer
    x = 167,935.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.