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Finding the Fourth Proportional to 224,105.60, 309,261.60 and 122,131.88

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Solution

The fourth proportional to 224,105.60, 309,261.60 and 122,131.88 is: 168,539.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,105.60 : 309,261.60 = 122,131.88 : x
  2. Step 2: Convert to fraction form
    224,105.60/309,261.60 = 122,131.88/x
  3. Step 3: Cross multiply
    224,105.60x = 309,261.60 × 122,131.88
  4. Step 4: Simplify right side
    224,105.60x = 37,770,700,619.81
  5. Step 5: Solve for x
    x = 37,770,700,619.81/224,105.60
  6. Step 6: Final answer
    x = 168,539.74

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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.