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Finding the Third Proportional to 486 and 898.50

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Solution

The third proportional to 486 and 898.50 is: 1,661.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    486 : 898.50 = 898.50 : x
  2. Step 2: Convert to fraction form
    486/898.50 = 898.50/x
  3. Step 3: Cross multiply
    486x = 898.50 × 898.50
  4. Step 4: Simplify right side
    486x = 807,302.25
  5. Step 5: Solve for x
    x = 807,302.25/486
  6. Step 6: Final answer
    x = 1,661.12

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.