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Finding the Fourth Proportional to 508.12, 765.16 and 364.84

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Solution

The fourth proportional to 508.12, 765.16 and 364.84 is: 549.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.12 : 765.16 = 364.84 : x
  2. Step 2: Convert to fraction form
    508.12/765.16 = 364.84/x
  3. Step 3: Cross multiply
    508.12x = 765.16 × 364.84
  4. Step 4: Simplify right side
    508.12x = 279,160.97
  5. Step 5: Solve for x
    x = 279,160.97/508.12
  6. Step 6: Final answer
    x = 549.40

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.