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Finding the Fourth Proportional to 388.76, 582.80 and 232.47

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Solution

The fourth proportional to 388.76, 582.80 and 232.47 is: 348.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    388.76 : 582.80 = 232.47 : x
  2. Step 2: Convert to fraction form
    388.76/582.80 = 232.47/x
  3. Step 3: Cross multiply
    388.76x = 582.80 × 232.47
  4. Step 4: Simplify right side
    388.76x = 135,482.35
  5. Step 5: Solve for x
    x = 135,482.35/388.76
  6. Step 6: Final answer
    x = 348.50

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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.