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Finding the Fourth Proportional to 490,937.05, 736,405.21 and 154,003.73

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Solution

The fourth proportional to 490,937.05, 736,405.21 and 154,003.73 is: 231,005.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,937.05 : 736,405.21 = 154,003.73 : x
  2. Step 2: Convert to fraction form
    490,937.05/736,405.21 = 154,003.73/x
  3. Step 3: Cross multiply
    490,937.05x = 736,405.21 × 154,003.73
  4. Step 4: Simplify right side
    490,937.05x = 113,409,145,641.91
  5. Step 5: Solve for x
    x = 113,409,145,641.91/490,937.05
  6. Step 6: Final answer
    x = 231,005.47

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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.