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Finding the Fourth Proportional to 203,662.53, 305,514.58 and 70,542.54

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Solution

The fourth proportional to 203,662.53, 305,514.58 and 70,542.54 is: 105,821.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,662.53 : 305,514.58 = 70,542.54 : x
  2. Step 2: Convert to fraction form
    203,662.53/305,514.58 = 70,542.54/x
  3. Step 3: Cross multiply
    203,662.53x = 305,514.58 × 70,542.54
  4. Step 4: Simplify right side
    203,662.53x = 21,551,774,480.23
  5. Step 5: Solve for x
    x = 21,551,774,480.23/203,662.53
  6. Step 6: Final answer
    x = 105,821.01

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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.