Home / 204,315.40-306,327.30-91,903.60

Finding the Fourth Proportional to 204,315.40, 306,327.30 and 91,903.60

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Solution

The fourth proportional to 204,315.40, 306,327.30 and 91,903.60 is: 137,789.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,315.40 : 306,327.30 = 91,903.60 : x
  2. Step 2: Convert to fraction form
    204,315.40/306,327.30 = 91,903.60/x
  3. Step 3: Cross multiply
    204,315.40x = 306,327.30 × 91,903.60
  4. Step 4: Simplify right side
    204,315.40x = 28,152,581,648.28
  5. Step 5: Solve for x
    x = 28,152,581,648.28/204,315.40
  6. Step 6: Final answer
    x = 137,789.82

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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.