Home / 282,099.23-389,296.92-161,243.12

Finding the Fourth Proportional to 282,099.23, 389,296.92 and 161,243.12

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Solution

The fourth proportional to 282,099.23, 389,296.92 and 161,243.12 is: 222,515.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,099.23 : 389,296.92 = 161,243.12 : x
  2. Step 2: Convert to fraction form
    282,099.23/389,296.92 = 161,243.12/x
  3. Step 3: Cross multiply
    282,099.23x = 389,296.92 × 161,243.12
  4. Step 4: Simplify right side
    282,099.23x = 62,771,449,987.19
  5. Step 5: Solve for x
    x = 62,771,449,987.19/282,099.23
  6. Step 6: Final answer
    x = 222,515.50

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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.