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Finding the Fourth Proportional to 301,232.36, 451,851.78 and 90,872.12

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Solution

The fourth proportional to 301,232.36, 451,851.78 and 90,872.12 is: 136,309.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,232.36 : 451,851.78 = 90,872.12 : x
  2. Step 2: Convert to fraction form
    301,232.36/451,851.78 = 90,872.12/x
  3. Step 3: Cross multiply
    301,232.36x = 451,851.78 × 90,872.12
  4. Step 4: Simplify right side
    301,232.36x = 41,060,729,174.37
  5. Step 5: Solve for x
    x = 41,060,729,174.37/301,232.36
  6. Step 6: Final answer
    x = 136,309.16

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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.