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Finding the Fourth Proportional to 203,910.60, 305,574.30 and 141,508.20

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Solution

The fourth proportional to 203,910.60, 305,574.30 and 141,508.20 is: 212,059.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,910.60 : 305,574.30 = 141,508.20 : x
  2. Step 2: Convert to fraction form
    203,910.60/305,574.30 = 141,508.20/x
  3. Step 3: Cross multiply
    203,910.60x = 305,574.30 × 141,508.20
  4. Step 4: Simplify right side
    203,910.60x = 43,241,269,159.26
  5. Step 5: Solve for x
    x = 43,241,269,159.26/203,910.60
  6. Step 6: Final answer
    x = 212,059.94

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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.