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Finding the Fourth Proportional to 490,850.11, 736,291.28 and 135,834.40

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Solution

The fourth proportional to 490,850.11, 736,291.28 and 135,834.40 is: 203,756.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,850.11 : 736,291.28 = 135,834.40 : x
  2. Step 2: Convert to fraction form
    490,850.11/736,291.28 = 135,834.40/x
  3. Step 3: Cross multiply
    490,850.11x = 736,291.28 × 135,834.40
  4. Step 4: Simplify right side
    490,850.11x = 100,013,685,503.98
  5. Step 5: Solve for x
    x = 100,013,685,503.98/490,850.11
  6. Step 6: Final answer
    x = 203,756.06

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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.