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Finding the Fourth Proportional to 388,388.84, 582,809.70 and 163,735.52

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Solution

The fourth proportional to 388,388.84, 582,809.70 and 163,735.52 is: 245,698.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,388.84 : 582,809.70 = 163,735.52 : x
  2. Step 2: Convert to fraction form
    388,388.84/582,809.70 = 163,735.52/x
  3. Step 3: Cross multiply
    388,388.84x = 582,809.70 × 163,735.52
  4. Step 4: Simplify right side
    388,388.84x = 95,426,649,290.54
  5. Step 5: Solve for x
    x = 95,426,649,290.54/388,388.84
  6. Step 6: Final answer
    x = 245,698.74

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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.