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Finding the Fourth Proportional to 203,367.34, 280,646.44 and 111,486.46

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Solution

The fourth proportional to 203,367.34, 280,646.44 and 111,486.46 is: 153,851.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,367.34 : 280,646.44 = 111,486.46 : x
  2. Step 2: Convert to fraction form
    203,367.34/280,646.44 = 111,486.46/x
  3. Step 3: Cross multiply
    203,367.34x = 280,646.44 × 111,486.46
  4. Step 4: Simplify right side
    203,367.34x = 31,288,279,087.53
  5. Step 5: Solve for x
    x = 31,288,279,087.53/203,367.34
  6. Step 6: Final answer
    x = 153,851.05

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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.