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Finding the Third Proportional to 132,308 and 288,376

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Solution

The third proportional to 132,308 and 288,376 is: 628,538.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,308 : 288,376 = 288,376 : x
  2. Step 2: Convert to fraction form
    132,308/288,376 = 288,376/x
  3. Step 3: Cross multiply
    132,308x = 288,376 × 288,376
  4. Step 4: Simplify right side
    132,308x = 83,160,717,376
  5. Step 5: Solve for x
    x = 83,160,717,376/132,308
  6. Step 6: Final answer
    x = 628,538.84

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.