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Finding the Fourth Proportional to 223,840.70, 335,761.05 and 90,725.30

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Solution

The fourth proportional to 223,840.70, 335,761.05 and 90,725.30 is: 136,087.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,840.70 : 335,761.05 = 90,725.30 : x
  2. Step 2: Convert to fraction form
    223,840.70/335,761.05 = 90,725.30/x
  3. Step 3: Cross multiply
    223,840.70x = 335,761.05 × 90,725.30
  4. Step 4: Simplify right side
    223,840.70x = 30,462,021,989.57
  5. Step 5: Solve for x
    x = 30,462,021,989.57/223,840.70
  6. Step 6: Final answer
    x = 136,087.95

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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.