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Finding the Fourth Proportional to 347,144, 520,767.84 and 125,579.84

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Solution

The fourth proportional to 347,144, 520,767.84 and 125,579.84 is: 188,388.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,144 : 520,767.84 = 125,579.84 : x
  2. Step 2: Convert to fraction form
    347,144/520,767.84 = 125,579.84/x
  3. Step 3: Cross multiply
    347,144x = 520,767.84 × 125,579.84
  4. Step 4: Simplify right side
    347,144x = 65,397,942,024.35
  5. Step 5: Solve for x
    x = 65,397,942,024.35/347,144
  6. Step 6: Final answer
    x = 188,388.51

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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.