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Finding the Fourth Proportional to 240,516.20, 360,947.10 and 100,375.40

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Solution

The fourth proportional to 240,516.20, 360,947.10 and 100,375.40 is: 150,635.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,516.20 : 360,947.10 = 100,375.40 : x
  2. Step 2: Convert to fraction form
    240,516.20/360,947.10 = 100,375.40/x
  3. Step 3: Cross multiply
    240,516.20x = 360,947.10 × 100,375.40
  4. Step 4: Simplify right side
    240,516.20x = 36,230,209,541.34
  5. Step 5: Solve for x
    x = 36,230,209,541.34/240,516.20
  6. Step 6: Final answer
    x = 150,635.22

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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.