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Finding the Fourth Proportional to 250,072.32, 345,104.64 and 136,892.64

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Solution

The fourth proportional to 250,072.32, 345,104.64 and 136,892.64 is: 188,914.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,072.32 : 345,104.64 = 136,892.64 : x
  2. Step 2: Convert to fraction form
    250,072.32/345,104.64 = 136,892.64/x
  3. Step 3: Cross multiply
    250,072.32x = 345,104.64 × 136,892.64
  4. Step 4: Simplify right side
    250,072.32x = 47,242,285,245.85
  5. Step 5: Solve for x
    x = 47,242,285,245.85/250,072.32
  6. Step 6: Final answer
    x = 188,914.49

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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.