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Finding the Fourth Proportional to 388,179.56, 582,266.10 and 107,696.84

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Solution

The fourth proportional to 388,179.56, 582,266.10 and 107,696.84 is: 161,544.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,179.56 : 582,266.10 = 107,696.84 : x
  2. Step 2: Convert to fraction form
    388,179.56/582,266.10 = 107,696.84/x
  3. Step 3: Cross multiply
    388,179.56x = 582,266.10 × 107,696.84
  4. Step 4: Simplify right side
    388,179.56x = 62,708,219,009.12
  5. Step 5: Solve for x
    x = 62,708,219,009.12/388,179.56
  6. Step 6: Final answer
    x = 161,544.36

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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.