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Finding the Third Proportional to 153.19 and 237.19

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Solution

The third proportional to 153.19 and 237.19 is: 367.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    153.19 : 237.19 = 237.19 : x
  2. Step 2: Convert to fraction form
    153.19/237.19 = 237.19/x
  3. Step 3: Cross multiply
    153.19x = 237.19 × 237.19
  4. Step 4: Simplify right side
    153.19x = 56,257.91
  5. Step 5: Solve for x
    x = 56,257.91/153.19
  6. Step 6: Final answer
    x = 367.25

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.