Home / 283,619.69-391,376.61-156,295.25

Finding the Fourth Proportional to 283,619.69, 391,376.61 and 156,295.25

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Solution

The fourth proportional to 283,619.69, 391,376.61 and 156,295.25 is: 215,677.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,619.69 : 391,376.61 = 156,295.25 : x
  2. Step 2: Convert to fraction form
    283,619.69/391,376.61 = 156,295.25/x
  3. Step 3: Cross multiply
    283,619.69x = 391,376.61 × 156,295.25
  4. Step 4: Simplify right side
    283,619.69x = 61,170,303,147.22
  5. Step 5: Solve for x
    x = 61,170,303,147.22/283,619.69
  6. Step 6: Final answer
    x = 215,677.21

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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.