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Finding the Fourth Proportional to 455,958.66, 629,255.52 and 252,005.20

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Solution

The fourth proportional to 455,958.66, 629,255.52 and 252,005.20 is: 347,785.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,958.66 : 629,255.52 = 252,005.20 : x
  2. Step 2: Convert to fraction form
    455,958.66/629,255.52 = 252,005.20/x
  3. Step 3: Cross multiply
    455,958.66x = 629,255.52 × 252,005.20
  4. Step 4: Simplify right side
    455,958.66x = 158,575,663,168.70
  5. Step 5: Solve for x
    x = 158,575,663,168.70/455,958.66
  6. Step 6: Final answer
    x = 347,785.18

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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.