Home / 282,344.28-389,523.96-161,420.61

Finding the Fourth Proportional to 282,344.28, 389,523.96 and 161,420.61

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Solution

The fourth proportional to 282,344.28, 389,523.96 and 161,420.61 is: 222,696.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,344.28 : 389,523.96 = 161,420.61 : x
  2. Step 2: Convert to fraction form
    282,344.28/389,523.96 = 161,420.61/x
  3. Step 3: Cross multiply
    282,344.28x = 389,523.96 × 161,420.61
  4. Step 4: Simplify right side
    282,344.28x = 62,877,195,232.82
  5. Step 5: Solve for x
    x = 62,877,195,232.82/282,344.28
  6. Step 6: Final answer
    x = 222,696.90

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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.