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Finding the Fourth Proportional to 378,146.56, 567,185.28 and 115,490.56

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Solution

The fourth proportional to 378,146.56, 567,185.28 and 115,490.56 is: 173,225.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,146.56 : 567,185.28 = 115,490.56 : x
  2. Step 2: Convert to fraction form
    378,146.56/567,185.28 = 115,490.56/x
  3. Step 3: Cross multiply
    378,146.56x = 567,185.28 × 115,490.56
  4. Step 4: Simplify right side
    378,146.56x = 65,504,545,610.96
  5. Step 5: Solve for x
    x = 65,504,545,610.96/378,146.56
  6. Step 6: Final answer
    x = 173,225.28

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1.5x scale

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.