Home / 215,943.22-298,007.40-120,468.52

Finding the Fourth Proportional to 215,943.22, 298,007.40 and 120,468.52

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Solution

The fourth proportional to 215,943.22, 298,007.40 and 120,468.52 is: 166,249.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,943.22 : 298,007.40 = 120,468.52 : x
  2. Step 2: Convert to fraction form
    215,943.22/298,007.40 = 120,468.52/x
  3. Step 3: Cross multiply
    215,943.22x = 298,007.40 × 120,468.52
  4. Step 4: Simplify right side
    215,943.22x = 35,900,510,427.05
  5. Step 5: Solve for x
    x = 35,900,510,427.05/215,943.22
  6. Step 6: Final answer
    x = 166,249.77

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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.