Home / 283,771.42-391,383-181,806.35

Finding the Fourth Proportional to 283,771.42, 391,383 and 181,806.35

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Solution

The fourth proportional to 283,771.42, 391,383 and 181,806.35 is: 250,750.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,771.42 : 391,383 = 181,806.35 : x
  2. Step 2: Convert to fraction form
    283,771.42/391,383 = 181,806.35/x
  3. Step 3: Cross multiply
    283,771.42x = 391,383 × 181,806.35
  4. Step 4: Simplify right side
    283,771.42x = 71,155,912,725.14
  5. Step 5: Solve for x
    x = 71,155,912,725.14/283,771.42
  6. Step 6: Final answer
    x = 250,750.81

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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.