Home / 300,769.16-451,154.08-90,407.10

Finding the Fourth Proportional to 300,769.16, 451,154.08 and 90,407.10

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Solution

The fourth proportional to 300,769.16, 451,154.08 and 90,407.10 is: 135,610.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,769.16 : 451,154.08 = 90,407.10 : x
  2. Step 2: Convert to fraction form
    300,769.16/451,154.08 = 90,407.10/x
  3. Step 3: Cross multiply
    300,769.16x = 451,154.08 × 90,407.10
  4. Step 4: Simplify right side
    300,769.16x = 40,787,529,769.92
  5. Step 5: Solve for x
    x = 40,787,529,769.92/300,769.16
  6. Step 6: Final answer
    x = 135,610.75

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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.