Home / 285,613.16-394,143.75-156,558.83

Finding the Fourth Proportional to 285,613.16, 394,143.75 and 156,558.83

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Solution

The fourth proportional to 285,613.16, 394,143.75 and 156,558.83 is: 216,049.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,613.16 : 394,143.75 = 156,558.83 : x
  2. Step 2: Convert to fraction form
    285,613.16/394,143.75 = 156,558.83/x
  3. Step 3: Cross multiply
    285,613.16x = 394,143.75 × 156,558.83
  4. Step 4: Simplify right side
    285,613.16x = 61,706,682,381.09
  5. Step 5: Solve for x
    x = 61,706,682,381.09/285,613.16
  6. Step 6: Final answer
    x = 216,049.86

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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.