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Finding the Fourth Proportional to 212,231.88, 292,840.92 and 126,219.60

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Solution

The fourth proportional to 212,231.88, 292,840.92 and 126,219.60 is: 174,159.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,231.88 : 292,840.92 = 126,219.60 : x
  2. Step 2: Convert to fraction form
    212,231.88/292,840.92 = 126,219.60/x
  3. Step 3: Cross multiply
    212,231.88x = 292,840.92 × 126,219.60
  4. Step 4: Simplify right side
    212,231.88x = 36,962,263,786.03
  5. Step 5: Solve for x
    x = 36,962,263,786.03/212,231.88
  6. Step 6: Final answer
    x = 174,159.81

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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.