Home / 215,356.47-297,188.96-119,863.20

Finding the Fourth Proportional to 215,356.47, 297,188.96 and 119,863.20

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Solution

The fourth proportional to 215,356.47, 297,188.96 and 119,863.20 is: 165,409.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,356.47 : 297,188.96 = 119,863.20 : x
  2. Step 2: Convert to fraction form
    215,356.47/297,188.96 = 119,863.20/x
  3. Step 3: Cross multiply
    215,356.47x = 297,188.96 × 119,863.20
  4. Step 4: Simplify right side
    215,356.47x = 35,622,019,150.96
  5. Step 5: Solve for x
    x = 35,622,019,150.96/215,356.47
  6. Step 6: Final answer
    x = 165,409.56

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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.