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Finding the Fourth Proportional to 456,128.55, 629,455.82 and 254,924.55

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Solution

The fourth proportional to 456,128.55, 629,455.82 and 254,924.55 is: 351,794.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,128.55 : 629,455.82 = 254,924.55 : x
  2. Step 2: Convert to fraction form
    456,128.55/629,455.82 = 254,924.55/x
  3. Step 3: Cross multiply
    456,128.55x = 629,455.82 × 254,924.55
  4. Step 4: Simplify right side
    456,128.55x = 160,463,739,148.41
  5. Step 5: Solve for x
    x = 160,463,739,148.41/456,128.55
  6. Step 6: Final answer
    x = 351,794.99

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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.