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Finding the Fourth Proportional to 201,334.87, 302,221.13 and 81,474.34

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Solution

The fourth proportional to 201,334.87, 302,221.13 and 81,474.34 is: 122,300.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,334.87 : 302,221.13 = 81,474.34 : x
  2. Step 2: Convert to fraction form
    201,334.87/302,221.13 = 81,474.34/x
  3. Step 3: Cross multiply
    201,334.87x = 302,221.13 × 81,474.34
  4. Step 4: Simplify right side
    201,334.87x = 24,623,265,937.88
  5. Step 5: Solve for x
    x = 24,623,265,937.88/201,334.87
  6. Step 6: Final answer
    x = 122,300.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.