Home / 217,769.62-300,514.30-122,280.34

Finding the Fourth Proportional to 217,769.62, 300,514.30 and 122,280.34

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Solution

The fourth proportional to 217,769.62, 300,514.30 and 122,280.34 is: 168,742.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,769.62 : 300,514.30 = 122,280.34 : x
  2. Step 2: Convert to fraction form
    217,769.62/300,514.30 = 122,280.34/x
  3. Step 3: Cross multiply
    217,769.62x = 300,514.30 × 122,280.34
  4. Step 4: Simplify right side
    217,769.62x = 36,746,990,778.86
  5. Step 5: Solve for x
    x = 36,746,990,778.86/217,769.62
  6. Step 6: Final answer
    x = 168,742.50

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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.