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Finding the Fourth Proportional to 253,291.32, 379,759.86 and 111,068.28

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Solution

The fourth proportional to 253,291.32, 379,759.86 and 111,068.28 is: 166,524.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,291.32 : 379,759.86 = 111,068.28 : x
  2. Step 2: Convert to fraction form
    253,291.32/379,759.86 = 111,068.28/x
  3. Step 3: Cross multiply
    253,291.32x = 379,759.86 × 111,068.28
  4. Step 4: Simplify right side
    253,291.32x = 42,179,274,463.24
  5. Step 5: Solve for x
    x = 42,179,274,463.24/253,291.32
  6. Step 6: Final answer
    x = 166,524.75

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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.