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Finding the Third Proportional to 151,394 and 217,248

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Solution

The third proportional to 151,394 and 217,248 is: 311,747.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,394 : 217,248 = 217,248 : x
  2. Step 2: Convert to fraction form
    151,394/217,248 = 217,248/x
  3. Step 3: Cross multiply
    151,394x = 217,248 × 217,248
  4. Step 4: Simplify right side
    151,394x = 47,196,693,504
  5. Step 5: Solve for x
    x = 47,196,693,504/151,394
  6. Step 6: Final answer
    x = 311,747.45

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.