Home / 282,191.31-389,431.40-161,352.27

Finding the Fourth Proportional to 282,191.31, 389,431.40 and 161,352.27

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Solution

The fourth proportional to 282,191.31, 389,431.40 and 161,352.27 is: 222,670.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,191.31 : 389,431.40 = 161,352.27 : x
  2. Step 2: Convert to fraction form
    282,191.31/389,431.40 = 161,352.27/x
  3. Step 3: Cross multiply
    282,191.31x = 389,431.40 × 161,352.27
  4. Step 4: Simplify right side
    282,191.31x = 62,835,639,592.52
  5. Step 5: Solve for x
    x = 62,835,639,592.52/282,191.31
  6. Step 6: Final answer
    x = 222,670.36

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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.