Home / 204,579.02-306,869.34-71,458.76

Finding the Fourth Proportional to 204,579.02, 306,869.34 and 71,458.76

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Solution

The fourth proportional to 204,579.02, 306,869.34 and 71,458.76 is: 107,188.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,579.02 : 306,869.34 = 71,458.76 : x
  2. Step 2: Convert to fraction form
    204,579.02/306,869.34 = 71,458.76/x
  3. Step 3: Cross multiply
    204,579.02x = 306,869.34 × 71,458.76
  4. Step 4: Simplify right side
    204,579.02x = 21,928,502,518.42
  5. Step 5: Solve for x
    x = 21,928,502,518.42/204,579.02
  6. Step 6: Final answer
    x = 107,188.42

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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.