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Finding the Fourth Proportional to 240,555.75, 360,913.79 and 80,647.49

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Solution

The fourth proportional to 240,555.75, 360,913.79 and 80,647.49 is: 120,998.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,555.75 : 360,913.79 = 80,647.49 : x
  2. Step 2: Convert to fraction form
    240,555.75/360,913.79 = 80,647.49/x
  3. Step 3: Cross multiply
    240,555.75x = 360,913.79 × 80,647.49
  4. Step 4: Simplify right side
    240,555.75x = 29,106,790,866.65
  5. Step 5: Solve for x
    x = 29,106,790,866.65/240,555.75
  6. Step 6: Final answer
    x = 120,998.11

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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.