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Finding the Fourth Proportional to 331,306.96, 499,173.40 and 299,757.46

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Solution

The fourth proportional to 331,306.96, 499,173.40 and 299,757.46 is: 451,638.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,306.96 : 499,173.40 = 299,757.46 : x
  2. Step 2: Convert to fraction form
    331,306.96/499,173.40 = 299,757.46/x
  3. Step 3: Cross multiply
    331,306.96x = 499,173.40 × 299,757.46
  4. Step 4: Simplify right side
    331,306.96x = 149,630,950,483.56
  5. Step 5: Solve for x
    x = 149,630,950,483.56/331,306.96
  6. Step 6: Final answer
    x = 451,638.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.