Home / 283,768.12-391,595.34-156,455.56

Finding the Fourth Proportional to 283,768.12, 391,595.34 and 156,455.56

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Solution

The fourth proportional to 283,768.12, 391,595.34 and 156,455.56 is: 215,906.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,768.12 : 391,595.34 = 156,455.56 : x
  2. Step 2: Convert to fraction form
    283,768.12/391,595.34 = 156,455.56/x
  3. Step 3: Cross multiply
    283,768.12x = 391,595.34 × 156,455.56
  4. Step 4: Simplify right side
    283,768.12x = 61,267,268,213.09
  5. Step 5: Solve for x
    x = 61,267,268,213.09/283,768.12
  6. Step 6: Final answer
    x = 215,906.10

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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.