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Finding the Fourth Proportional to 511.98, 766.62 and 358.08

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Solution

The fourth proportional to 511.98, 766.62 and 358.08 is: 536.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.98 : 766.62 = 358.08 : x
  2. Step 2: Convert to fraction form
    511.98/766.62 = 358.08/x
  3. Step 3: Cross multiply
    511.98x = 766.62 × 358.08
  4. Step 4: Simplify right side
    511.98x = 274,511.29
  5. Step 5: Solve for x
    x = 274,511.29/511.98
  6. Step 6: Final answer
    x = 536.18

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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.