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Finding the Fourth Proportional to 254,249.26, 349,619.80 and 220,656.94

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Solution

The fourth proportional to 254,249.26, 349,619.80 and 220,656.94 is: 303,426.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,249.26 : 349,619.80 = 220,656.94 : x
  2. Step 2: Convert to fraction form
    254,249.26/349,619.80 = 220,656.94/x
  3. Step 3: Cross multiply
    254,249.26x = 349,619.80 × 220,656.94
  4. Step 4: Simplify right side
    254,249.26x = 77,146,035,231.41
  5. Step 5: Solve for x
    x = 77,146,035,231.41/254,249.26
  6. Step 6: Final answer
    x = 303,426.78

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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.