Home / 285,286.57-393,667.81-170,542.22

Finding the Fourth Proportional to 285,286.57, 393,667.81 and 170,542.22

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Solution

The fourth proportional to 285,286.57, 393,667.81 and 170,542.22 is: 235,331.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,286.57 : 393,667.81 = 170,542.22 : x
  2. Step 2: Convert to fraction form
    285,286.57/393,667.81 = 170,542.22/x
  3. Step 3: Cross multiply
    285,286.57x = 393,667.81 × 170,542.22
  4. Step 4: Simplify right side
    285,286.57x = 67,136,979,865.24
  5. Step 5: Solve for x
    x = 67,136,979,865.24/285,286.57
  6. Step 6: Final answer
    x = 235,331.72

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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.