Home / 217,974.60-326,743.20-99,730.80

Finding the Fourth Proportional to 217,974.60, 326,743.20 and 99,730.80

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Solution

The fourth proportional to 217,974.60, 326,743.20 and 99,730.80 is: 149,496.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,974.60 : 326,743.20 = 99,730.80 : x
  2. Step 2: Convert to fraction form
    217,974.60/326,743.20 = 99,730.80/x
  3. Step 3: Cross multiply
    217,974.60x = 326,743.20 × 99,730.80
  4. Step 4: Simplify right side
    217,974.60x = 32,586,360,730.56
  5. Step 5: Solve for x
    x = 32,586,360,730.56/217,974.60
  6. Step 6: Final answer
    x = 149,496.14

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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.