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Finding the Fourth Proportional to 324,300.78, 447,501.13 and 188,308.22

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Solution

The fourth proportional to 324,300.78, 447,501.13 and 188,308.22 is: 259,845.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,300.78 : 447,501.13 = 188,308.22 : x
  2. Step 2: Convert to fraction form
    324,300.78/447,501.13 = 188,308.22/x
  3. Step 3: Cross multiply
    324,300.78x = 447,501.13 × 188,308.22
  4. Step 4: Simplify right side
    324,300.78x = 84,268,140,296.75
  5. Step 5: Solve for x
    x = 84,268,140,296.75/324,300.78
  6. Step 6: Final answer
    x = 259,845.63

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1.5x scale

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.