Home / 307,960.38-462,086.78-213,336.18

Finding the Fourth Proportional to 307,960.38, 462,086.78 and 213,336.18

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Solution

The fourth proportional to 307,960.38, 462,086.78 and 213,336.18 is: 320,105.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,960.38 : 462,086.78 = 213,336.18 : x
  2. Step 2: Convert to fraction form
    307,960.38/462,086.78 = 213,336.18/x
  3. Step 3: Cross multiply
    307,960.38x = 462,086.78 × 213,336.18
  4. Step 4: Simplify right side
    307,960.38x = 98,579,827,407.02
  5. Step 5: Solve for x
    x = 98,579,827,407.02/307,960.38
  6. Step 6: Final answer
    x = 320,105.55

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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.