Home / 204,865.28-307,307.64-99,558.80

Finding the Fourth Proportional to 204,865.28, 307,307.64 and 99,558.80

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Solution

The fourth proportional to 204,865.28, 307,307.64 and 99,558.80 is: 149,342.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,865.28 : 307,307.64 = 99,558.80 : x
  2. Step 2: Convert to fraction form
    204,865.28/307,307.64 = 99,558.80/x
  3. Step 3: Cross multiply
    204,865.28x = 307,307.64 × 99,558.80
  4. Step 4: Simplify right side
    204,865.28x = 30,595,179,869.23
  5. Step 5: Solve for x
    x = 30,595,179,869.23/204,865.28
  6. Step 6: Final answer
    x = 149,342.92

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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.