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Finding the Fourth Proportional to 203,279.32, 304,959.87 and 70,164.73

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Solution

The fourth proportional to 203,279.32, 304,959.87 and 70,164.73 is: 105,261.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,279.32 : 304,959.87 = 70,164.73 : x
  2. Step 2: Convert to fraction form
    203,279.32/304,959.87 = 70,164.73/x
  3. Step 3: Cross multiply
    203,279.32x = 304,959.87 × 70,164.73
  4. Step 4: Simplify right side
    203,279.32x = 21,397,426,939.39
  5. Step 5: Solve for x
    x = 21,397,426,939.39/203,279.32
  6. Step 6: Final answer
    x = 105,261.21

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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.