Home / 282,020.30-389,207.81-161,179.46

Finding the Fourth Proportional to 282,020.30, 389,207.81 and 161,179.46

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Solution

The fourth proportional to 282,020.30, 389,207.81 and 161,179.46 is: 222,438.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,020.30 : 389,207.81 = 161,179.46 : x
  2. Step 2: Convert to fraction form
    282,020.30/389,207.81 = 161,179.46/x
  3. Step 3: Cross multiply
    282,020.30x = 389,207.81 × 161,179.46
  4. Step 4: Simplify right side
    282,020.30x = 62,732,304,643.58
  5. Step 5: Solve for x
    x = 62,732,304,643.58/282,020.30
  6. Step 6: Final answer
    x = 222,438.97

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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.