Home / 217,905.27-326,154.83-112,579.35

Finding the Fourth Proportional to 217,905.27, 326,154.83 and 112,579.35

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Solution

The fourth proportional to 217,905.27, 326,154.83 and 112,579.35 is: 168,505.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,905.27 : 326,154.83 = 112,579.35 : x
  2. Step 2: Convert to fraction form
    217,905.27/326,154.83 = 112,579.35/x
  3. Step 3: Cross multiply
    217,905.27x = 326,154.83 × 112,579.35
  4. Step 4: Simplify right side
    217,905.27x = 36,718,298,197.86
  5. Step 5: Solve for x
    x = 36,718,298,197.86/217,905.27
  6. Step 6: Final answer
    x = 168,505.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.