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Finding the Fourth Proportional to 319,027.69, 440,242.32 and 175,764.61

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Solution

The fourth proportional to 319,027.69, 440,242.32 and 175,764.61 is: 242,546.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,027.69 : 440,242.32 = 175,764.61 : x
  2. Step 2: Convert to fraction form
    319,027.69/440,242.32 = 175,764.61/x
  3. Step 3: Cross multiply
    319,027.69x = 440,242.32 × 175,764.61
  4. Step 4: Simplify right side
    319,027.69x = 77,379,019,680.30
  5. Step 5: Solve for x
    x = 77,379,019,680.30/319,027.69
  6. Step 6: Final answer
    x = 242,546.41

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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.