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Finding the Third Proportional to 183,766.50 and 278,421

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Solution

The third proportional to 183,766.50 and 278,421 is: 421,830.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,766.50 : 278,421 = 278,421 : x
  2. Step 2: Convert to fraction form
    183,766.50/278,421 = 278,421/x
  3. Step 3: Cross multiply
    183,766.50x = 278,421 × 278,421
  4. Step 4: Simplify right side
    183,766.50x = 77,518,253,241
  5. Step 5: Solve for x
    x = 77,518,253,241/183,766.50
  6. Step 6: Final answer
    x = 421,830.17

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.