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Finding the Fourth Proportional to 490,160.43, 735,286.01 and 190,663.74

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Solution

The fourth proportional to 490,160.43, 735,286.01 and 190,663.74 is: 286,013.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,160.43 : 735,286.01 = 190,663.74 : x
  2. Step 2: Convert to fraction form
    490,160.43/735,286.01 = 190,663.74/x
  3. Step 3: Cross multiply
    490,160.43x = 735,286.01 × 190,663.74
  4. Step 4: Simplify right side
    490,160.43x = 140,192,379,682.96
  5. Step 5: Solve for x
    x = 140,192,379,682.96/490,160.43
  6. Step 6: Final answer
    x = 286,013.25

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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.