Home / 282,342.28-389,521.21-161,418.60

Finding the Fourth Proportional to 282,342.28, 389,521.21 and 161,418.60

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Solution

The fourth proportional to 282,342.28, 389,521.21 and 161,418.60 is: 222,694.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,342.28 : 389,521.21 = 161,418.60 : x
  2. Step 2: Convert to fraction form
    282,342.28/389,521.21 = 161,418.60/x
  3. Step 3: Cross multiply
    282,342.28x = 389,521.21 × 161,418.60
  4. Step 4: Simplify right side
    282,342.28x = 62,875,968,388.51
  5. Step 5: Solve for x
    x = 62,875,968,388.51/282,342.28
  6. Step 6: Final answer
    x = 222,694.13

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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.