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Finding the Fourth Proportional to 253,269.70, 379,904.55 and 228,775.30

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Solution

The fourth proportional to 253,269.70, 379,904.55 and 228,775.30 is: 343,162.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,269.70 : 379,904.55 = 228,775.30 : x
  2. Step 2: Convert to fraction form
    253,269.70/379,904.55 = 228,775.30/x
  3. Step 3: Cross multiply
    253,269.70x = 379,904.55 × 228,775.30
  4. Step 4: Simplify right side
    253,269.70x = 86,912,777,397.62
  5. Step 5: Solve for x
    x = 86,912,777,397.62/253,269.70
  6. Step 6: Final answer
    x = 343,162.95

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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.