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Finding the Third Proportional to 217,273 and 318,133

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Solution

The third proportional to 217,273 and 318,133 is: 465,813.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,273 : 318,133 = 318,133 : x
  2. Step 2: Convert to fraction form
    217,273/318,133 = 318,133/x
  3. Step 3: Cross multiply
    217,273x = 318,133 × 318,133
  4. Step 4: Simplify right side
    217,273x = 101,208,605,689
  5. Step 5: Solve for x
    x = 101,208,605,689/217,273
  6. Step 6: Final answer
    x = 465,813.08

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.