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Finding the Third Proportional to 387 and 895.50

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Solution

The third proportional to 387 and 895.50 is: 2,072.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    387 : 895.50 = 895.50 : x
  2. Step 2: Convert to fraction form
    387/895.50 = 895.50/x
  3. Step 3: Cross multiply
    387x = 895.50 × 895.50
  4. Step 4: Simplify right side
    387x = 801,920.25
  5. Step 5: Solve for x
    x = 801,920.25/387
  6. Step 6: Final answer
    x = 2,072.15

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.