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Finding the Fourth Proportional to 253,077.98, 379,540.28 and 133,070.26

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Solution

The fourth proportional to 253,077.98, 379,540.28 and 133,070.26 is: 199,565.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,077.98 : 379,540.28 = 133,070.26 : x
  2. Step 2: Convert to fraction form
    253,077.98/379,540.28 = 133,070.26/x
  3. Step 3: Cross multiply
    253,077.98x = 379,540.28 × 133,070.26
  4. Step 4: Simplify right side
    253,077.98x = 50,505,523,087.02
  5. Step 5: Solve for x
    x = 50,505,523,087.02/253,077.98
  6. Step 6: Final answer
    x = 199,565.07

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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.