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Finding the Fourth Proportional to 482.74, 666.13 and 272.93

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Solution

The fourth proportional to 482.74, 666.13 and 272.93 is: 376.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.74 : 666.13 = 272.93 : x
  2. Step 2: Convert to fraction form
    482.74/666.13 = 272.93/x
  3. Step 3: Cross multiply
    482.74x = 666.13 × 272.93
  4. Step 4: Simplify right side
    482.74x = 181,806.86
  5. Step 5: Solve for x
    x = 181,806.86/482.74
  6. Step 6: Final answer
    x = 376.61

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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.