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Finding the Fourth Proportional to 455,061.88, 628,110.32 and 264,136.78

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Solution

The fourth proportional to 455,061.88, 628,110.32 and 264,136.78 is: 364,581.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,061.88 : 628,110.32 = 264,136.78 : x
  2. Step 2: Convert to fraction form
    455,061.88/628,110.32 = 264,136.78/x
  3. Step 3: Cross multiply
    455,061.88x = 628,110.32 × 264,136.78
  4. Step 4: Simplify right side
    455,061.88x = 165,907,036,874.02
  5. Step 5: Solve for x
    x = 165,907,036,874.02/455,061.88
  6. Step 6: Final answer
    x = 364,581.27

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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.