Home / 283,541.72-391,286.41-154,479.83

Finding the Fourth Proportional to 283,541.72, 391,286.41 and 154,479.83

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Solution

The fourth proportional to 283,541.72, 391,286.41 and 154,479.83 is: 213,181.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,541.72 : 391,286.41 = 154,479.83 : x
  2. Step 2: Convert to fraction form
    283,541.72/391,286.41 = 154,479.83/x
  3. Step 3: Cross multiply
    283,541.72x = 391,286.41 × 154,479.83
  4. Step 4: Simplify right side
    283,541.72x = 60,445,857,222.80
  5. Step 5: Solve for x
    x = 60,445,857,222.80/283,541.72
  6. Step 6: Final answer
    x = 213,181.53

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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.