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Finding the Fourth Proportional to 455,892.51, 629,144.24 and 251,956.65

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Solution

The fourth proportional to 455,892.51, 629,144.24 and 251,956.65 is: 347,707.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,892.51 : 629,144.24 = 251,956.65 : x
  2. Step 2: Convert to fraction form
    455,892.51/629,144.24 = 251,956.65/x
  3. Step 3: Cross multiply
    455,892.51x = 629,144.24 × 251,956.65
  4. Step 4: Simplify right side
    455,892.51x = 158,517,073,817.41
  5. Step 5: Solve for x
    x = 158,517,073,817.41/455,892.51
  6. Step 6: Final answer
    x = 347,707.12

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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.