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Finding the Fourth Proportional to 490,279.45, 735,461.57 and 135,293.49

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Solution

The fourth proportional to 490,279.45, 735,461.57 and 135,293.49 is: 202,951.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,279.45 : 735,461.57 = 135,293.49 : x
  2. Step 2: Convert to fraction form
    490,279.45/735,461.57 = 135,293.49/x
  3. Step 3: Cross multiply
    490,279.45x = 735,461.57 × 135,293.49
  4. Step 4: Simplify right side
    490,279.45x = 99,503,162,566.18
  5. Step 5: Solve for x
    x = 99,503,162,566.18/490,279.45
  6. Step 6: Final answer
    x = 202,951.93

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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.