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Finding the Fourth Proportional to 297.56, 448.60 and 276.68

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Solution

The fourth proportional to 297.56, 448.60 and 276.68 is: 417.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.56 : 448.60 = 276.68 : x
  2. Step 2: Convert to fraction form
    297.56/448.60 = 276.68/x
  3. Step 3: Cross multiply
    297.56x = 448.60 × 276.68
  4. Step 4: Simplify right side
    297.56x = 124,118.65
  5. Step 5: Solve for x
    x = 124,118.65/297.56
  6. Step 6: Final answer
    x = 417.12

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.