Home / 285,621.72-394,067.90-164,746.80

Finding the Fourth Proportional to 285,621.72, 394,067.90 and 164,746.80

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Solution

The fourth proportional to 285,621.72, 394,067.90 and 164,746.80 is: 227,298.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,621.72 : 394,067.90 = 164,746.80 : x
  2. Step 2: Convert to fraction form
    285,621.72/394,067.90 = 164,746.80/x
  3. Step 3: Cross multiply
    285,621.72x = 394,067.90 × 164,746.80
  4. Step 4: Simplify right side
    285,621.72x = 64,921,425,507.72
  5. Step 5: Solve for x
    x = 64,921,425,507.72/285,621.72
  6. Step 6: Final answer
    x = 227,298.63

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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.