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Finding the Fourth Proportional to 436,144.30, 601,790.79 and 254,821.21

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Solution

The fourth proportional to 436,144.30, 601,790.79 and 254,821.21 is: 351,601.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,144.30 : 601,790.79 = 254,821.21 : x
  2. Step 2: Convert to fraction form
    436,144.30/601,790.79 = 254,821.21/x
  3. Step 3: Cross multiply
    436,144.30x = 601,790.79 × 254,821.21
  4. Step 4: Simplify right side
    436,144.30x = 153,349,057,274.66
  5. Step 5: Solve for x
    x = 153,349,057,274.66/436,144.30
  6. Step 6: Final answer
    x = 351,601.65

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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.