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Finding the Fourth Proportional to 488,356.20, 673,899.48 and 273,447

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Solution

The fourth proportional to 488,356.20, 673,899.48 and 273,447 is: 377,338.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,356.20 : 673,899.48 = 273,447 : x
  2. Step 2: Convert to fraction form
    488,356.20/673,899.48 = 273,447/x
  3. Step 3: Cross multiply
    488,356.20x = 673,899.48 × 273,447
  4. Step 4: Simplify right side
    488,356.20x = 184,275,791,107.56
  5. Step 5: Solve for x
    x = 184,275,791,107.56/488,356.20
  6. Step 6: Final answer
    x = 377,338.90

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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.