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Finding the Fourth Proportional to 203,003.40, 304,245.90 and 156,023.40

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Solution

The fourth proportional to 203,003.40, 304,245.90 and 156,023.40 is: 233,835.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,003.40 : 304,245.90 = 156,023.40 : x
  2. Step 2: Convert to fraction form
    203,003.40/304,245.90 = 156,023.40/x
  3. Step 3: Cross multiply
    203,003.40x = 304,245.90 × 156,023.40
  4. Step 4: Simplify right side
    203,003.40x = 47,469,479,754.06
  5. Step 5: Solve for x
    x = 47,469,479,754.06/203,003.40
  6. Step 6: Final answer
    x = 233,835.89

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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.