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Finding the Fourth Proportional to 488,015.54, 673,454.50 and 270,203.40

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Solution

The fourth proportional to 488,015.54, 673,454.50 and 270,203.40 is: 372,876.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,015.54 : 673,454.50 = 270,203.40 : x
  2. Step 2: Convert to fraction form
    488,015.54/673,454.50 = 270,203.40/x
  3. Step 3: Cross multiply
    488,015.54x = 673,454.50 × 270,203.40
  4. Step 4: Simplify right side
    488,015.54x = 181,969,695,645.30
  5. Step 5: Solve for x
    x = 181,969,695,645.30/488,015.54
  6. Step 6: Final answer
    x = 372,876.85

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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.