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Finding the Fourth Proportional to 388,551.29, 582,859.73 and 108,068.54

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Solution

The fourth proportional to 388,551.29, 582,859.73 and 108,068.54 is: 162,111.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,551.29 : 582,859.73 = 108,068.54 : x
  2. Step 2: Convert to fraction form
    388,551.29/582,859.73 = 108,068.54/x
  3. Step 3: Cross multiply
    388,551.29x = 582,859.73 × 108,068.54
  4. Step 4: Simplify right side
    388,551.29x = 62,988,796,591.25
  5. Step 5: Solve for x
    x = 62,988,796,591.25/388,551.29
  6. Step 6: Final answer
    x = 162,111.92

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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.