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Finding the Fourth Proportional to 455,963.72, 629,217.06 and 254,759.72

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Solution

The fourth proportional to 455,963.72, 629,217.06 and 254,759.72 is: 351,561.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,963.72 : 629,217.06 = 254,759.72 : x
  2. Step 2: Convert to fraction form
    455,963.72/629,217.06 = 254,759.72/x
  3. Step 3: Cross multiply
    455,963.72x = 629,217.06 × 254,759.72
  4. Step 4: Simplify right side
    455,963.72x = 160,299,162,024.82
  5. Step 5: Solve for x
    x = 160,299,162,024.82/455,963.72
  6. Step 6: Final answer
    x = 351,561.22

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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.