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Finding the Fourth Proportional to 652.97, 979.41 and 190.74

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Solution

The fourth proportional to 652.97, 979.41 and 190.74 is: 286.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.97 : 979.41 = 190.74 : x
  2. Step 2: Convert to fraction form
    652.97/979.41 = 190.74/x
  3. Step 3: Cross multiply
    652.97x = 979.41 × 190.74
  4. Step 4: Simplify right side
    652.97x = 186,812.66
  5. Step 5: Solve for x
    x = 186,812.66/652.97
  6. Step 6: Final answer
    x = 286.10

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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.