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Finding the Fourth Proportional to 235,371.46, 352,946.28 and 85,506.10

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Solution

The fourth proportional to 235,371.46, 352,946.28 and 85,506.10 is: 128,218.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,371.46 : 352,946.28 = 85,506.10 : x
  2. Step 2: Convert to fraction form
    235,371.46/352,946.28 = 85,506.10/x
  3. Step 3: Cross multiply
    235,371.46x = 352,946.28 × 85,506.10
  4. Step 4: Simplify right side
    235,371.46x = 30,179,059,912.31
  5. Step 5: Solve for x
    x = 30,179,059,912.31/235,371.46
  6. Step 6: Final answer
    x = 128,218.86

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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.