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Finding the Fourth Proportional to 223,840.40, 335,760.60 and 129,232.40

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Solution

The fourth proportional to 223,840.40, 335,760.60 and 129,232.40 is: 193,848.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,840.40 : 335,760.60 = 129,232.40 : x
  2. Step 2: Convert to fraction form
    223,840.40/335,760.60 = 129,232.40/x
  3. Step 3: Cross multiply
    223,840.40x = 335,760.60 × 129,232.40
  4. Step 4: Simplify right side
    223,840.40x = 43,391,148,163.44
  5. Step 5: Solve for x
    x = 43,391,148,163.44/223,840.40
  6. Step 6: Final answer
    x = 193,848.60

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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.