Home / 283,769.85-391,605.09-156,450

Finding the Fourth Proportional to 283,769.85, 391,605.09 and 156,450

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Solution

The fourth proportional to 283,769.85, 391,605.09 and 156,450 is: 215,902.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,769.85 : 391,605.09 = 156,450 : x
  2. Step 2: Convert to fraction form
    283,769.85/391,605.09 = 156,450/x
  3. Step 3: Cross multiply
    283,769.85x = 391,605.09 × 156,450
  4. Step 4: Simplify right side
    283,769.85x = 61,266,616,330.50
  5. Step 5: Solve for x
    x = 61,266,616,330.50/283,769.85
  6. Step 6: Final answer
    x = 215,902.49

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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.