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Finding the Fourth Proportional to 388,168, 582,252.27 and 107,685.52

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Solution

The fourth proportional to 388,168, 582,252.27 and 107,685.52 is: 161,528.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,168 : 582,252.27 = 107,685.52 : x
  2. Step 2: Convert to fraction form
    388,168/582,252.27 = 107,685.52/x
  3. Step 3: Cross multiply
    388,168x = 582,252.27 × 107,685.52
  4. Step 4: Simplify right side
    388,168x = 62,700,138,466.13
  5. Step 5: Solve for x
    x = 62,700,138,466.13/388,168
  6. Step 6: Final answer
    x = 161,528.35

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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.