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Finding the Third Proportional to 0.99 and 2.16

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Solution

The third proportional to 0.99 and 2.16 is: 4.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    0.99 : 2.16 = 2.16 : x
  2. Step 2: Convert to fraction form
    0.99/2.16 = 2.16/x
  3. Step 3: Cross multiply
    0.99x = 2.16 × 2.16
  4. Step 4: Simplify right side
    0.99x = 4.69
  5. Step 5: Solve for x
    x = 4.69/0.99
  6. Step 6: Final answer
    x = 4.74

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.