Home / 282,119.31-389,324.58-161,263.19

Finding the Fourth Proportional to 282,119.31, 389,324.58 and 161,263.19

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Solution

The fourth proportional to 282,119.31, 389,324.58 and 161,263.19 is: 222,543.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,119.31 : 389,324.58 = 161,263.19 : x
  2. Step 2: Convert to fraction form
    282,119.31/389,324.58 = 161,263.19/x
  3. Step 3: Cross multiply
    282,119.31x = 389,324.58 × 161,263.19
  4. Step 4: Simplify right side
    282,119.31x = 62,783,721,769.59
  5. Step 5: Solve for x
    x = 62,783,721,769.59/282,119.31
  6. Step 6: Final answer
    x = 222,543.16

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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.