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Finding the Fourth Proportional to 845.32, 1,268.04 and 297.48

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Solution

The fourth proportional to 845.32, 1,268.04 and 297.48 is: 446.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    845.32 : 1,268.04 = 297.48 : x
  2. Step 2: Convert to fraction form
    845.32/1,268.04 = 297.48/x
  3. Step 3: Cross multiply
    845.32x = 1,268.04 × 297.48
  4. Step 4: Simplify right side
    845.32x = 377,216.54
  5. Step 5: Solve for x
    x = 377,216.54/845.32
  6. Step 6: Final answer
    x = 446.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.