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Finding the Fourth Proportional to 203,566.86, 305,371.24 and 70,446.90

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Solution

The fourth proportional to 203,566.86, 305,371.24 and 70,446.90 is: 105,677.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,566.86 : 305,371.24 = 70,446.90 : x
  2. Step 2: Convert to fraction form
    203,566.86/305,371.24 = 70,446.90/x
  3. Step 3: Cross multiply
    203,566.86x = 305,371.24 × 70,446.90
  4. Step 4: Simplify right side
    203,566.86x = 21,512,457,207.16
  5. Step 5: Solve for x
    x = 21,512,457,207.16/203,566.86
  6. Step 6: Final answer
    x = 105,677.60

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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.