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Finding the Fourth Proportional to 448.48, 670.16 and 336.56

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Solution

The fourth proportional to 448.48, 670.16 and 336.56 is: 502.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    448.48 : 670.16 = 336.56 : x
  2. Step 2: Convert to fraction form
    448.48/670.16 = 336.56/x
  3. Step 3: Cross multiply
    448.48x = 670.16 × 336.56
  4. Step 4: Simplify right side
    448.48x = 225,549.05
  5. Step 5: Solve for x
    x = 225,549.05/448.48
  6. Step 6: Final answer
    x = 502.92

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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.