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Finding the Fourth Proportional to 471.48, 648.36 and 377.04

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Solution

The fourth proportional to 471.48, 648.36 and 377.04 is: 518.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.48 : 648.36 = 377.04 : x
  2. Step 2: Convert to fraction form
    471.48/648.36 = 377.04/x
  3. Step 3: Cross multiply
    471.48x = 648.36 × 377.04
  4. Step 4: Simplify right side
    471.48x = 244,457.65
  5. Step 5: Solve for x
    x = 244,457.65/471.48
  6. Step 6: Final answer
    x = 518.49

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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.