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Finding the Third Proportional to 145.75 and 369.88

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Solution

The third proportional to 145.75 and 369.88 is: 938.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    145.75 : 369.88 = 369.88 : x
  2. Step 2: Convert to fraction form
    145.75/369.88 = 369.88/x
  3. Step 3: Cross multiply
    145.75x = 369.88 × 369.88
  4. Step 4: Simplify right side
    145.75x = 136,807.52
  5. Step 5: Solve for x
    x = 136,807.52/145.75
  6. Step 6: Final answer
    x = 938.65

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Why These Related Problems?

These problems maintain the same ratio (2.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.