Home / 282,139.02-389,351.88-161,282.96

Finding the Fourth Proportional to 282,139.02, 389,351.88 and 161,282.96

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Solution

The fourth proportional to 282,139.02, 389,351.88 and 161,282.96 is: 222,570.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,139.02 : 389,351.88 = 161,282.96 : x
  2. Step 2: Convert to fraction form
    282,139.02/389,351.88 = 161,282.96/x
  3. Step 3: Cross multiply
    282,139.02x = 389,351.88 × 161,282.96
  4. Step 4: Simplify right side
    282,139.02x = 62,795,823,687.96
  5. Step 5: Solve for x
    x = 62,795,823,687.96/282,139.02
  6. Step 6: Final answer
    x = 222,570.50

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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.