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Finding the Fourth Proportional to 499,498.27, 689,293.60 and 273,138.91

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Solution

The fourth proportional to 499,498.27, 689,293.60 and 273,138.91 is: 376,924.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,498.27 : 689,293.60 = 273,138.91 : x
  2. Step 2: Convert to fraction form
    499,498.27/689,293.60 = 273,138.91/x
  3. Step 3: Cross multiply
    499,498.27x = 689,293.60 × 273,138.91
  4. Step 4: Simplify right side
    499,498.27x = 188,272,900,167.90
  5. Step 5: Solve for x
    x = 188,272,900,167.90/499,498.27
  6. Step 6: Final answer
    x = 376,924.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.