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Finding the Fourth Proportional to 652.94, 979.56 and 190.72

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Solution

The fourth proportional to 652.94, 979.56 and 190.72 is: 286.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.94 : 979.56 = 190.72 : x
  2. Step 2: Convert to fraction form
    652.94/979.56 = 190.72/x
  3. Step 3: Cross multiply
    652.94x = 979.56 × 190.72
  4. Step 4: Simplify right side
    652.94x = 186,822.91
  5. Step 5: Solve for x
    x = 186,822.91/652.94
  6. Step 6: Final answer
    x = 286.13

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Double scale
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Similar ratio
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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.