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Finding the Fourth Proportional to 351,910.64, 486,037.74 and 238,536.56

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Solution

The fourth proportional to 351,910.64, 486,037.74 and 238,536.56 is: 329,452.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,910.64 : 486,037.74 = 238,536.56 : x
  2. Step 2: Convert to fraction form
    351,910.64/486,037.74 = 238,536.56/x
  3. Step 3: Cross multiply
    351,910.64x = 486,037.74 × 238,536.56
  4. Step 4: Simplify right side
    351,910.64x = 115,937,770,529.77
  5. Step 5: Solve for x
    x = 115,937,770,529.77/351,910.64
  6. Step 6: Final answer
    x = 329,452.30

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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.