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Finding the Fourth Proportional to 224,109.20, 336,163.80 and 81,954.20

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Solution

The fourth proportional to 224,109.20, 336,163.80 and 81,954.20 is: 122,931.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,109.20 : 336,163.80 = 81,954.20 : x
  2. Step 2: Convert to fraction form
    224,109.20/336,163.80 = 81,954.20/x
  3. Step 3: Cross multiply
    224,109.20x = 336,163.80 × 81,954.20
  4. Step 4: Simplify right side
    224,109.20x = 27,550,035,297.96
  5. Step 5: Solve for x
    x = 27,550,035,297.96/224,109.20
  6. Step 6: Final answer
    x = 122,931.30

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1.5x scale

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.