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Finding the Fourth Proportional to 237,912, 328,318.56 and 131,928

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Solution

The fourth proportional to 237,912, 328,318.56 and 131,928 is: 182,060.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,912 : 328,318.56 = 131,928 : x
  2. Step 2: Convert to fraction form
    237,912/328,318.56 = 131,928/x
  3. Step 3: Cross multiply
    237,912x = 328,318.56 × 131,928
  4. Step 4: Simplify right side
    237,912x = 43,314,410,983.68
  5. Step 5: Solve for x
    x = 43,314,410,983.68/237,912
  6. Step 6: Final answer
    x = 182,060.64

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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.