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Finding the Fourth Proportional to 339,388.86, 508,874.04 and 114,728.07

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Solution

The fourth proportional to 339,388.86, 508,874.04 and 114,728.07 is: 172,021.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,388.86 : 508,874.04 = 114,728.07 : x
  2. Step 2: Convert to fraction form
    339,388.86/508,874.04 = 114,728.07/x
  3. Step 3: Cross multiply
    339,388.86x = 508,874.04 × 114,728.07
  4. Step 4: Simplify right side
    339,388.86x = 58,382,136,482.30
  5. Step 5: Solve for x
    x = 58,382,136,482.30/339,388.86
  6. Step 6: Final answer
    x = 172,021.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.