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Finding the Fourth Proportional to 491.16, 673.30 and 482.32

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Solution

The fourth proportional to 491.16, 673.30 and 482.32 is: 661.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    491.16 : 673.30 = 482.32 : x
  2. Step 2: Convert to fraction form
    491.16/673.30 = 482.32/x
  3. Step 3: Cross multiply
    491.16x = 673.30 × 482.32
  4. Step 4: Simplify right side
    491.16x = 324,743.98
  5. Step 5: Solve for x
    x = 324,743.98/491.16
  6. Step 6: Final answer
    x = 661.17

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.