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Finding the Fourth Proportional to 324,042.40, 446,998.80 and 189,880.48

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Solution

The fourth proportional to 324,042.40, 446,998.80 and 189,880.48 is: 261,929.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,042.40 : 446,998.80 = 189,880.48 : x
  2. Step 2: Convert to fraction form
    324,042.40/446,998.80 = 189,880.48/x
  3. Step 3: Cross multiply
    324,042.40x = 446,998.80 × 189,880.48
  4. Step 4: Simplify right side
    324,042.40x = 84,876,346,703.42
  5. Step 5: Solve for x
    x = 84,876,346,703.42/324,042.40
  6. Step 6: Final answer
    x = 261,929.76

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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.