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Finding the Fourth Proportional to 206,760.96, 309,950.40 and 80,484.48

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Solution

The fourth proportional to 206,760.96, 309,950.40 and 80,484.48 is: 120,652.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,760.96 : 309,950.40 = 80,484.48 : x
  2. Step 2: Convert to fraction form
    206,760.96/309,950.40 = 80,484.48/x
  3. Step 3: Cross multiply
    206,760.96x = 309,950.40 × 80,484.48
  4. Step 4: Simplify right side
    206,760.96x = 24,946,196,769.79
  5. Step 5: Solve for x
    x = 24,946,196,769.79/206,760.96
  6. Step 6: Final answer
    x = 120,652.36

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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.