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Finding the Fourth Proportional to 379,474.50, 523,674.82 and 228,600.66

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Solution

The fourth proportional to 379,474.50, 523,674.82 and 228,600.66 is: 315,468.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,474.50 : 523,674.82 = 228,600.66 : x
  2. Step 2: Convert to fraction form
    379,474.50/523,674.82 = 228,600.66/x
  3. Step 3: Cross multiply
    379,474.50x = 523,674.82 × 228,600.66
  4. Step 4: Simplify right side
    379,474.50x = 119,712,409,477.38
  5. Step 5: Solve for x
    x = 119,712,409,477.38/379,474.50
  6. Step 6: Final answer
    x = 315,468.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.