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Finding the Third Proportional to 318,024 and 494,316

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Solution

The third proportional to 318,024 and 494,316 is: 768,332.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,024 : 494,316 = 494,316 : x
  2. Step 2: Convert to fraction form
    318,024/494,316 = 494,316/x
  3. Step 3: Cross multiply
    318,024x = 494,316 × 494,316
  4. Step 4: Simplify right side
    318,024x = 244,348,307,856
  5. Step 5: Solve for x
    x = 244,348,307,856/318,024
  6. Step 6: Final answer
    x = 768,332.92

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.