Home / 305,876.28-458,964.60-137,515.44

Finding the Fourth Proportional to 305,876.28, 458,964.60 and 137,515.44

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Solution

The fourth proportional to 305,876.28, 458,964.60 and 137,515.44 is: 206,340.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,876.28 : 458,964.60 = 137,515.44 : x
  2. Step 2: Convert to fraction form
    305,876.28/458,964.60 = 137,515.44/x
  3. Step 3: Cross multiply
    305,876.28x = 458,964.60 × 137,515.44
  4. Step 4: Simplify right side
    305,876.28x = 63,114,718,913.42
  5. Step 5: Solve for x
    x = 63,114,718,913.42/305,876.28
  6. Step 6: Final answer
    x = 206,340.68

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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.