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Finding the Fourth Proportional to 239,313.15, 330,254.40 and 131,887.11

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Solution

The fourth proportional to 239,313.15, 330,254.40 and 131,887.11 is: 182,005.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,313.15 : 330,254.40 = 131,887.11 : x
  2. Step 2: Convert to fraction form
    239,313.15/330,254.40 = 131,887.11/x
  3. Step 3: Cross multiply
    239,313.15x = 330,254.40 × 131,887.11
  4. Step 4: Simplify right side
    239,313.15x = 43,556,298,380.78
  5. Step 5: Solve for x
    x = 43,556,298,380.78/239,313.15
  6. Step 6: Final answer
    x = 182,005.45

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.