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Finding the Fourth Proportional to 670.23, 925.07 and 481.68

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Solution

The fourth proportional to 670.23, 925.07 and 481.68 is: 664.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.23 : 925.07 = 481.68 : x
  2. Step 2: Convert to fraction form
    670.23/925.07 = 481.68/x
  3. Step 3: Cross multiply
    670.23x = 925.07 × 481.68
  4. Step 4: Simplify right side
    670.23x = 445,585.31
  5. Step 5: Solve for x
    x = 445,585.31/670.23
  6. Step 6: Final answer
    x = 664.82

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1.5x scale

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.