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Finding the Fourth Proportional to 253,196.16, 379,737.74 and 75,680.10

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Solution

The fourth proportional to 253,196.16, 379,737.74 and 75,680.10 is: 113,503.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,196.16 : 379,737.74 = 75,680.10 : x
  2. Step 2: Convert to fraction form
    253,196.16/379,737.74 = 75,680.10/x
  3. Step 3: Cross multiply
    253,196.16x = 379,737.74 × 75,680.10
  4. Step 4: Simplify right side
    253,196.16x = 28,738,589,758.57
  5. Step 5: Solve for x
    x = 28,738,589,758.57/253,196.16
  6. Step 6: Final answer
    x = 113,503.26

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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.