Home / 283,635.23-391,424.82-156,319.03

Finding the Fourth Proportional to 283,635.23, 391,424.82 and 156,319.03

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Solution

The fourth proportional to 283,635.23, 391,424.82 and 156,319.03 is: 215,724.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,635.23 : 391,424.82 = 156,319.03 : x
  2. Step 2: Convert to fraction form
    283,635.23/391,424.82 = 156,319.03/x
  3. Step 3: Cross multiply
    283,635.23x = 391,424.82 × 156,319.03
  4. Step 4: Simplify right side
    283,635.23x = 61,187,148,180.32
  5. Step 5: Solve for x
    x = 61,187,148,180.32/283,635.23
  6. Step 6: Final answer
    x = 215,724.78

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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.