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Finding the Fourth Proportional to 395,033.35, 545,145.66 and 222,987.53

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Solution

The fourth proportional to 395,033.35, 545,145.66 and 222,987.53 is: 307,722.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,033.35 : 545,145.66 = 222,987.53 : x
  2. Step 2: Convert to fraction form
    395,033.35/545,145.66 = 222,987.53/x
  3. Step 3: Cross multiply
    395,033.35x = 545,145.66 × 222,987.53
  4. Step 4: Simplify right side
    395,033.35x = 121,560,684,213.62
  5. Step 5: Solve for x
    x = 121,560,684,213.62/395,033.35
  6. Step 6: Final answer
    x = 307,722.59

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1.5x scale

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.