Home / 282,280.32-389,543.04-161,441.28

Finding the Fourth Proportional to 282,280.32, 389,543.04 and 161,441.28

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Solution

The fourth proportional to 282,280.32, 389,543.04 and 161,441.28 is: 222,786.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,280.32 : 389,543.04 = 161,441.28 : x
  2. Step 2: Convert to fraction form
    282,280.32/389,543.04 = 161,441.28/x
  3. Step 3: Cross multiply
    282,280.32x = 389,543.04 × 161,441.28
  4. Step 4: Simplify right side
    282,280.32x = 62,888,326,992.69
  5. Step 5: Solve for x
    x = 62,888,326,992.69/282,280.32
  6. Step 6: Final answer
    x = 222,786.79

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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.