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Finding the Third Proportional to 288,957 and 383,415

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Solution

The third proportional to 288,957 and 383,415 is: 508,750.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,957 : 383,415 = 383,415 : x
  2. Step 2: Convert to fraction form
    288,957/383,415 = 383,415/x
  3. Step 3: Cross multiply
    288,957x = 383,415 × 383,415
  4. Step 4: Simplify right side
    288,957x = 147,007,062,225
  5. Step 5: Solve for x
    x = 147,007,062,225/288,957
  6. Step 6: Final answer
    x = 508,750.65

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.