Home / 282,097.94-389,321.51-161,215.61

Finding the Fourth Proportional to 282,097.94, 389,321.51 and 161,215.61

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Solution

The fourth proportional to 282,097.94, 389,321.51 and 161,215.61 is: 222,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,097.94 : 389,321.51 = 161,215.61 : x
  2. Step 2: Convert to fraction form
    282,097.94/389,321.51 = 161,215.61/x
  3. Step 3: Cross multiply
    282,097.94x = 389,321.51 × 161,215.61
  4. Step 4: Simplify right side
    282,097.94x = 62,764,701,968.09
  5. Step 5: Solve for x
    x = 62,764,701,968.09/282,097.94
  6. Step 6: Final answer
    x = 222,492.60

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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.