Home / 285,215.65-393,474.05-171,975.49

Finding the Fourth Proportional to 285,215.65, 393,474.05 and 171,975.49

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Solution

The fourth proportional to 285,215.65, 393,474.05 and 171,975.49 is: 237,251.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,215.65 : 393,474.05 = 171,975.49 : x
  2. Step 2: Convert to fraction form
    285,215.65/393,474.05 = 171,975.49/x
  3. Step 3: Cross multiply
    285,215.65x = 393,474.05 × 171,975.49
  4. Step 4: Simplify right side
    285,215.65x = 67,667,891,691.16
  5. Step 5: Solve for x
    x = 67,667,891,691.16/285,215.65
  6. Step 6: Final answer
    x = 237,251.68

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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.