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Finding the Fourth Proportional to 220,147.57, 303,808.57 and 123,358.65

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Solution

The fourth proportional to 220,147.57, 303,808.57 and 123,358.65 is: 170,237.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,147.57 : 303,808.57 = 123,358.65 : x
  2. Step 2: Convert to fraction form
    220,147.57/303,808.57 = 123,358.65/x
  3. Step 3: Cross multiply
    220,147.57x = 303,808.57 × 123,358.65
  4. Step 4: Simplify right side
    220,147.57x = 37,477,414,299.84
  5. Step 5: Solve for x
    x = 37,477,414,299.84/220,147.57
  6. Step 6: Final answer
    x = 170,237.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.