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Finding the Fourth Proportional to 300,696.91, 450,951.05 and 98,246.87

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Solution

The fourth proportional to 300,696.91, 450,951.05 and 98,246.87 is: 147,339.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,696.91 : 450,951.05 = 98,246.87 : x
  2. Step 2: Convert to fraction form
    300,696.91/450,951.05 = 98,246.87/x
  3. Step 3: Cross multiply
    300,696.91x = 450,951.05 × 98,246.87
  4. Step 4: Simplify right side
    300,696.91x = 44,304,530,851.60
  5. Step 5: Solve for x
    x = 44,304,530,851.60/300,696.91
  6. Step 6: Final answer
    x = 147,339.50

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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.