Home / 206,867.36-310,302.12-82,208.72

Finding the Fourth Proportional to 206,867.36, 310,302.12 and 82,208.72

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Solution

The fourth proportional to 206,867.36, 310,302.12 and 82,208.72 is: 123,313.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,867.36 : 310,302.12 = 82,208.72 : x
  2. Step 2: Convert to fraction form
    206,867.36/310,302.12 = 82,208.72/x
  3. Step 3: Cross multiply
    206,867.36x = 310,302.12 × 82,208.72
  4. Step 4: Simplify right side
    206,867.36x = 25,509,540,098.49
  5. Step 5: Solve for x
    x = 25,509,540,098.49/206,867.36
  6. Step 6: Final answer
    x = 123,313.51

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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.