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Finding the Fourth Proportional to 656.07, 984.25 and 217.36

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Solution

The fourth proportional to 656.07, 984.25 and 217.36 is: 326.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    656.07 : 984.25 = 217.36 : x
  2. Step 2: Convert to fraction form
    656.07/984.25 = 217.36/x
  3. Step 3: Cross multiply
    656.07x = 984.25 × 217.36
  4. Step 4: Simplify right side
    656.07x = 213,935.31
  5. Step 5: Solve for x
    x = 213,935.31/656.07
  6. Step 6: Final answer
    x = 326.08

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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.