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Finding the Fourth Proportional to 360.62, 497.72 and 283.13

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Solution

The fourth proportional to 360.62, 497.72 and 283.13 is: 390.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.62 : 497.72 = 283.13 : x
  2. Step 2: Convert to fraction form
    360.62/497.72 = 283.13/x
  3. Step 3: Cross multiply
    360.62x = 497.72 × 283.13
  4. Step 4: Simplify right side
    360.62x = 140,918.05
  5. Step 5: Solve for x
    x = 140,918.05/360.62
  6. Step 6: Final answer
    x = 390.77

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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.