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Finding the Fourth Proportional to 482.37, 665.64 and 272.58

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Solution

The fourth proportional to 482.37, 665.64 and 272.58 is: 376.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.37 : 665.64 = 272.58 : x
  2. Step 2: Convert to fraction form
    482.37/665.64 = 272.58/x
  3. Step 3: Cross multiply
    482.37x = 665.64 × 272.58
  4. Step 4: Simplify right side
    482.37x = 181,440.15
  5. Step 5: Solve for x
    x = 181,440.15/482.37
  6. Step 6: Final answer
    x = 376.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.