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Finding the Fourth Proportional to 490,125.20, 735,233.22 and 190,628.32

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Solution

The fourth proportional to 490,125.20, 735,233.22 and 190,628.32 is: 285,960.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,125.20 : 735,233.22 = 190,628.32 : x
  2. Step 2: Convert to fraction form
    490,125.20/735,233.22 = 190,628.32/x
  3. Step 3: Cross multiply
    490,125.20x = 735,233.22 × 190,628.32
  4. Step 4: Simplify right side
    490,125.20x = 140,156,273,536.79
  5. Step 5: Solve for x
    x = 140,156,273,536.79/490,125.20
  6. Step 6: Final answer
    x = 285,960.15

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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.