Home / 253,311.10-379,909.85-75,795.35

Finding the Fourth Proportional to 253,311.10, 379,909.85 and 75,795.35

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Solution

The fourth proportional to 253,311.10, 379,909.85 and 75,795.35 is: 113,676.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,311.10 : 379,909.85 = 75,795.35 : x
  2. Step 2: Convert to fraction form
    253,311.10/379,909.85 = 75,795.35/x
  3. Step 3: Cross multiply
    253,311.10x = 379,909.85 × 75,795.35
  4. Step 4: Simplify right side
    253,311.10x = 28,795,397,770.67
  5. Step 5: Solve for x
    x = 28,795,397,770.67/253,311.10
  6. Step 6: Final answer
    x = 113,676.02

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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.