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Finding the Fourth Proportional to 243,640.42, 365,522.90 and 101,438.41

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Solution

The fourth proportional to 243,640.42, 365,522.90 and 101,438.41 is: 152,183.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,640.42 : 365,522.90 = 101,438.41 : x
  2. Step 2: Convert to fraction form
    243,640.42/365,522.90 = 101,438.41/x
  3. Step 3: Cross multiply
    243,640.42x = 365,522.90 × 101,438.41
  4. Step 4: Simplify right side
    243,640.42x = 37,078,061,794.59
  5. Step 5: Solve for x
    x = 37,078,061,794.59/243,640.42
  6. Step 6: Final answer
    x = 152,183.54

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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.