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Finding the Fourth Proportional to 448.66, 670.44 and 336.75

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Solution

The fourth proportional to 448.66, 670.44 and 336.75 is: 503.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    448.66 : 670.44 = 336.75 : x
  2. Step 2: Convert to fraction form
    448.66/670.44 = 336.75/x
  3. Step 3: Cross multiply
    448.66x = 670.44 × 336.75
  4. Step 4: Simplify right side
    448.66x = 225,765.63
  5. Step 5: Solve for x
    x = 225,765.63/448.66
  6. Step 6: Final answer
    x = 503.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.