Home / 222,462.08-306,998.60-120,488.72

Finding the Fourth Proportional to 222,462.08, 306,998.60 and 120,488.72

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Solution

The fourth proportional to 222,462.08, 306,998.60 and 120,488.72 is: 166,274.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,462.08 : 306,998.60 = 120,488.72 : x
  2. Step 2: Convert to fraction form
    222,462.08/306,998.60 = 120,488.72/x
  3. Step 3: Cross multiply
    222,462.08x = 306,998.60 × 120,488.72
  4. Step 4: Simplify right side
    222,462.08x = 36,989,868,355.79
  5. Step 5: Solve for x
    x = 36,989,868,355.79/222,462.08
  6. Step 6: Final answer
    x = 166,274.94

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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.