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Finding the Fourth Proportional to 309,846.80, 464,770.20 and 203,558.60

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Solution

The fourth proportional to 309,846.80, 464,770.20 and 203,558.60 is: 305,337.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,846.80 : 464,770.20 = 203,558.60 : x
  2. Step 2: Convert to fraction form
    309,846.80/464,770.20 = 203,558.60/x
  3. Step 3: Cross multiply
    309,846.80x = 464,770.20 × 203,558.60
  4. Step 4: Simplify right side
    309,846.80x = 94,607,971,233.72
  5. Step 5: Solve for x
    x = 94,607,971,233.72/309,846.80
  6. Step 6: Final answer
    x = 305,337.90

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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.