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Finding the Fourth Proportional to 204,089.70, 306,134.55 and 119,890.20

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Solution

The fourth proportional to 204,089.70, 306,134.55 and 119,890.20 is: 179,835.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,089.70 : 306,134.55 = 119,890.20 : x
  2. Step 2: Convert to fraction form
    204,089.70/306,134.55 = 119,890.20/x
  3. Step 3: Cross multiply
    204,089.70x = 306,134.55 × 119,890.20
  4. Step 4: Simplify right side
    204,089.70x = 36,702,532,426.41
  5. Step 5: Solve for x
    x = 36,702,532,426.41/204,089.70
  6. Step 6: Final answer
    x = 179,835.30

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1.5x scale

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.