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Finding the Fourth Proportional to 203,566.28, 305,370.40 and 70,446.34

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Solution

The fourth proportional to 203,566.28, 305,370.40 and 70,446.34 is: 105,676.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,566.28 : 305,370.40 = 70,446.34 : x
  2. Step 2: Convert to fraction form
    203,566.28/305,370.40 = 70,446.34/x
  3. Step 3: Cross multiply
    203,566.28x = 305,370.40 × 70,446.34
  4. Step 4: Simplify right side
    203,566.28x = 21,512,227,024.34
  5. Step 5: Solve for x
    x = 21,512,227,024.34/203,566.28
  6. Step 6: Final answer
    x = 105,676.77

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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.