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Finding the Fourth Proportional to 455,958.67, 629,255.53 and 252,005.20

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Solution

The fourth proportional to 455,958.67, 629,255.53 and 252,005.20 is: 347,785.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,958.67 : 629,255.53 = 252,005.20 : x
  2. Step 2: Convert to fraction form
    455,958.67/629,255.53 = 252,005.20/x
  3. Step 3: Cross multiply
    455,958.67x = 629,255.53 × 252,005.20
  4. Step 4: Simplify right side
    455,958.67x = 158,575,665,688.76
  5. Step 5: Solve for x
    x = 158,575,665,688.76/455,958.67
  6. Step 6: Final answer
    x = 347,785.17

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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.