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Finding the Fourth Proportional to 207.33, 286.14 and 123.36

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Solution

The fourth proportional to 207.33, 286.14 and 123.36 is: 170.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    207.33 : 286.14 = 123.36 : x
  2. Step 2: Convert to fraction form
    207.33/286.14 = 123.36/x
  3. Step 3: Cross multiply
    207.33x = 286.14 × 123.36
  4. Step 4: Simplify right side
    207.33x = 35,298.23
  5. Step 5: Solve for x
    x = 35,298.23/207.33
  6. Step 6: Final answer
    x = 170.25

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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.