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Finding the Fourth Proportional to 470.26, 648.57 and 467.83

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Solution

The fourth proportional to 470.26, 648.57 and 467.83 is: 645.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    470.26 : 648.57 = 467.83 : x
  2. Step 2: Convert to fraction form
    470.26/648.57 = 467.83/x
  3. Step 3: Cross multiply
    470.26x = 648.57 × 467.83
  4. Step 4: Simplify right side
    470.26x = 303,420.50
  5. Step 5: Solve for x
    x = 303,420.50/470.26
  6. Step 6: Final answer
    x = 645.22

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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.