Home / 285,979.04-394,685.08-165,149.68

Finding the Fourth Proportional to 285,979.04, 394,685.08 and 165,149.68

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Solution

The fourth proportional to 285,979.04, 394,685.08 and 165,149.68 is: 227,926.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,979.04 : 394,685.08 = 165,149.68 : x
  2. Step 2: Convert to fraction form
    285,979.04/394,685.08 = 165,149.68/x
  3. Step 3: Cross multiply
    285,979.04x = 394,685.08 × 165,149.68
  4. Step 4: Simplify right side
    285,979.04x = 65,182,114,662.77
  5. Step 5: Solve for x
    x = 65,182,114,662.77/285,979.04
  6. Step 6: Final answer
    x = 227,926.20

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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.