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Finding the Fourth Proportional to 300,771.43, 415,036.97 and 173,422.42

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Solution

The fourth proportional to 300,771.43, 415,036.97 and 173,422.42 is: 239,307.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,771.43 : 415,036.97 = 173,422.42 : x
  2. Step 2: Convert to fraction form
    300,771.43/415,036.97 = 173,422.42/x
  3. Step 3: Cross multiply
    300,771.43x = 415,036.97 × 173,422.42
  4. Step 4: Simplify right side
    300,771.43x = 71,976,714,472.50
  5. Step 5: Solve for x
    x = 71,976,714,472.50/300,771.43
  6. Step 6: Final answer
    x = 239,307.02

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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.