Home / 217,789.20-300,528.18-122,274

Finding the Fourth Proportional to 217,789.20, 300,528.18 and 122,274

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Solution

The fourth proportional to 217,789.20, 300,528.18 and 122,274 is: 168,726.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,789.20 : 300,528.18 = 122,274 : x
  2. Step 2: Convert to fraction form
    217,789.20/300,528.18 = 122,274/x
  3. Step 3: Cross multiply
    217,789.20x = 300,528.18 × 122,274
  4. Step 4: Simplify right side
    217,789.20x = 36,746,782,681.32
  5. Step 5: Solve for x
    x = 36,746,782,681.32/217,789.20
  6. Step 6: Final answer
    x = 168,726.38

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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.