Home / 283,621.69-391,379.37-156,297.25

Finding the Fourth Proportional to 283,621.69, 391,379.37 and 156,297.25

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Solution

The fourth proportional to 283,621.69, 391,379.37 and 156,297.25 is: 215,679.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,621.69 : 391,379.37 = 156,297.25 : x
  2. Step 2: Convert to fraction form
    283,621.69/391,379.37 = 156,297.25/x
  3. Step 3: Cross multiply
    283,621.69x = 391,379.37 × 156,297.25
  4. Step 4: Simplify right side
    283,621.69x = 61,171,519,237.73
  5. Step 5: Solve for x
    x = 61,171,519,237.73/283,621.69
  6. Step 6: Final answer
    x = 215,679.98

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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.