Home / 282,135.12-389,346.51-161,279.07

Finding the Fourth Proportional to 282,135.12, 389,346.51 and 161,279.07

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Solution

The fourth proportional to 282,135.12, 389,346.51 and 161,279.07 is: 222,565.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,135.12 : 389,346.51 = 161,279.07 : x
  2. Step 2: Convert to fraction form
    282,135.12/389,346.51 = 161,279.07/x
  3. Step 3: Cross multiply
    282,135.12x = 389,346.51 × 161,279.07
  4. Step 4: Simplify right side
    282,135.12x = 62,793,442,185.29
  5. Step 5: Solve for x
    x = 62,793,442,185.29/282,135.12
  6. Step 6: Final answer
    x = 222,565.14

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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.