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Finding the Fourth Proportional to 305,327.00, 421,401.69 and 169,404.68

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Solution

The fourth proportional to 305,327.00, 421,401.69 and 169,404.68 is: 233,806.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,327.00 : 421,401.69 = 169,404.68 : x
  2. Step 2: Convert to fraction form
    305,327.00/421,401.69 = 169,404.68/x
  3. Step 3: Cross multiply
    305,327.00x = 421,401.69 × 169,404.68
  4. Step 4: Simplify right side
    305,327.00x = 71,387,416,338.90
  5. Step 5: Solve for x
    x = 71,387,416,338.90/305,327.00
  6. Step 6: Final answer
    x = 233,806.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.