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Finding the Fourth Proportional to 491.39, 736.75 and 352.65

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Solution

The fourth proportional to 491.39, 736.75 and 352.65 is: 528.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    491.39 : 736.75 = 352.65 : x
  2. Step 2: Convert to fraction form
    491.39/736.75 = 352.65/x
  3. Step 3: Cross multiply
    491.39x = 736.75 × 352.65
  4. Step 4: Simplify right side
    491.39x = 259,816.11
  5. Step 5: Solve for x
    x = 259,816.11/491.39
  6. Step 6: Final answer
    x = 528.74

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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.