Home / 306,921.20-423,572.50-186,067.58

Finding the Fourth Proportional to 306,921.20, 423,572.50 and 186,067.58

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Solution

The fourth proportional to 306,921.20, 423,572.50 and 186,067.58 is: 256,786.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,921.20 : 423,572.50 = 186,067.58 : x
  2. Step 2: Convert to fraction form
    306,921.20/423,572.50 = 186,067.58/x
  3. Step 3: Cross multiply
    306,921.20x = 423,572.50 × 186,067.58
  4. Step 4: Simplify right side
    306,921.20x = 78,813,110,029.55
  5. Step 5: Solve for x
    x = 78,813,110,029.55/306,921.20
  6. Step 6: Final answer
    x = 256,786.14

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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.