Home / 285,514.35-394,025.76-163,042.89

Finding the Fourth Proportional to 285,514.35, 394,025.76 and 163,042.89

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Solution

The fourth proportional to 285,514.35, 394,025.76 and 163,042.89 is: 225,008.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,514.35 : 394,025.76 = 163,042.89 : x
  2. Step 2: Convert to fraction form
    285,514.35/394,025.76 = 163,042.89/x
  3. Step 3: Cross multiply
    285,514.35x = 394,025.76 × 163,042.89
  4. Step 4: Simplify right side
    285,514.35x = 64,243,098,644.85
  5. Step 5: Solve for x
    x = 64,243,098,644.85/285,514.35
  6. Step 6: Final answer
    x = 225,008.30

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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.