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Finding the Fourth Proportional to 204,401.70, 306,602.55 and 79,742.70

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Solution

The fourth proportional to 204,401.70, 306,602.55 and 79,742.70 is: 119,614.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,401.70 : 306,602.55 = 79,742.70 : x
  2. Step 2: Convert to fraction form
    204,401.70/306,602.55 = 79,742.70/x
  3. Step 3: Cross multiply
    204,401.70x = 306,602.55 × 79,742.70
  4. Step 4: Simplify right side
    204,401.70x = 24,449,315,163.89
  5. Step 5: Solve for x
    x = 24,449,315,163.89/204,401.70
  6. Step 6: Final answer
    x = 119,614.05

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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.