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Finding the Fourth Proportional to 203,247.23, 304,747.72 and 90,906.50

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Solution

The fourth proportional to 203,247.23, 304,747.72 and 90,906.50 is: 136,304.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,247.23 : 304,747.72 = 90,906.50 : x
  2. Step 2: Convert to fraction form
    203,247.23/304,747.72 = 90,906.50/x
  3. Step 3: Cross multiply
    203,247.23x = 304,747.72 × 90,906.50
  4. Step 4: Simplify right side
    203,247.23x = 27,703,549,142.78
  5. Step 5: Solve for x
    x = 27,703,549,142.78/203,247.23
  6. Step 6: Final answer
    x = 136,304.69

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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.