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Finding the Fourth Proportional to 240,433.80, 360,780.30 and 100,206.60

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Solution

The fourth proportional to 240,433.80, 360,780.30 and 100,206.60 is: 150,363.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,433.80 : 360,780.30 = 100,206.60 : x
  2. Step 2: Convert to fraction form
    240,433.80/360,780.30 = 100,206.60/x
  3. Step 3: Cross multiply
    240,433.80x = 360,780.30 × 100,206.60
  4. Step 4: Simplify right side
    240,433.80x = 36,152,567,209.98
  5. Step 5: Solve for x
    x = 36,152,567,209.98/240,433.80
  6. Step 6: Final answer
    x = 150,363.91

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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.