Home / 285,923.80-394,567.22-165,061

Finding the Fourth Proportional to 285,923.80, 394,567.22 and 165,061

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Solution

The fourth proportional to 285,923.80, 394,567.22 and 165,061 is: 227,779.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,923.80 : 394,567.22 = 165,061 : x
  2. Step 2: Convert to fraction form
    285,923.80/394,567.22 = 165,061/x
  3. Step 3: Cross multiply
    285,923.80x = 394,567.22 × 165,061
  4. Step 4: Simplify right side
    285,923.80x = 65,127,659,900.42
  5. Step 5: Solve for x
    x = 65,127,659,900.42/285,923.80
  6. Step 6: Final answer
    x = 227,779.78

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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.