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Finding the Fourth Proportional to 203,664.55, 305,496.80 and 63,434.11

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Solution

The fourth proportional to 203,664.55, 305,496.80 and 63,434.11 is: 95,151.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,664.55 : 305,496.80 = 63,434.11 : x
  2. Step 2: Convert to fraction form
    203,664.55/305,496.80 = 63,434.11/x
  3. Step 3: Cross multiply
    203,664.55x = 305,496.80 × 63,434.11
  4. Step 4: Simplify right side
    203,664.55x = 19,378,915,771.19
  5. Step 5: Solve for x
    x = 19,378,915,771.19/203,664.55
  6. Step 6: Final answer
    x = 95,151.15

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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.