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Finding the Fourth Proportional to 483.04, 665.49 and 357.04

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Solution

The fourth proportional to 483.04, 665.49 and 357.04 is: 491.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.04 : 665.49 = 357.04 : x
  2. Step 2: Convert to fraction form
    483.04/665.49 = 357.04/x
  3. Step 3: Cross multiply
    483.04x = 665.49 × 357.04
  4. Step 4: Simplify right side
    483.04x = 237,606.55
  5. Step 5: Solve for x
    x = 237,606.55/483.04
  6. Step 6: Final answer
    x = 491.90

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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.