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Finding the Fourth Proportional to 490,911.25, 736,449.91 and 251,129.26

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Solution

The fourth proportional to 490,911.25, 736,449.91 and 251,129.26 is: 376,736.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,911.25 : 736,449.91 = 251,129.26 : x
  2. Step 2: Convert to fraction form
    490,911.25/736,449.91 = 251,129.26/x
  3. Step 3: Cross multiply
    490,911.25x = 736,449.91 × 251,129.26
  4. Step 4: Simplify right side
    490,911.25x = 184,944,120,925.37
  5. Step 5: Solve for x
    x = 184,944,120,925.37/490,911.25
  6. Step 6: Final answer
    x = 376,736.37

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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.