Home / 313,912.07-470,857.68-136,419.25

Finding the Fourth Proportional to 313,912.07, 470,857.68 and 136,419.25

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Solution

The fourth proportional to 313,912.07, 470,857.68 and 136,419.25 is: 204,624.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,912.07 : 470,857.68 = 136,419.25 : x
  2. Step 2: Convert to fraction form
    313,912.07/470,857.68 = 136,419.25/x
  3. Step 3: Cross multiply
    313,912.07x = 470,857.68 × 136,419.25
  4. Step 4: Simplify right side
    313,912.07x = 64,234,052,313.88
  5. Step 5: Solve for x
    x = 64,234,052,313.88/313,912.07
  6. Step 6: Final answer
    x = 204,624.35

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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.