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Finding the Fourth Proportional to 240,443.67, 360,684.19 and 80,520.21

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Solution

The fourth proportional to 240,443.67, 360,684.19 and 80,520.21 is: 120,786.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,443.67 : 360,684.19 = 80,520.21 : x
  2. Step 2: Convert to fraction form
    240,443.67/360,684.19 = 80,520.21/x
  3. Step 3: Cross multiply
    240,443.67x = 360,684.19 × 80,520.21
  4. Step 4: Simplify right side
    240,443.67x = 29,042,366,823.13
  5. Step 5: Solve for x
    x = 29,042,366,823.13/240,443.67
  6. Step 6: Final answer
    x = 120,786.57

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1.5x scale

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.