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Finding the Fourth Proportional to 653.05, 979.48 and 166.07

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Solution

The fourth proportional to 653.05, 979.48 and 166.07 is: 249.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    653.05 : 979.48 = 166.07 : x
  2. Step 2: Convert to fraction form
    653.05/979.48 = 166.07/x
  3. Step 3: Cross multiply
    653.05x = 979.48 × 166.07
  4. Step 4: Simplify right side
    653.05x = 162,664.28
  5. Step 5: Solve for x
    x = 162,664.28/653.05
  6. Step 6: Final answer
    x = 249.08

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Double scale
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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.