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Finding the Fourth Proportional to 344.51, 475.03 and 281.40

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Solution

The fourth proportional to 344.51, 475.03 and 281.40 is: 388.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.51 : 475.03 = 281.40 : x
  2. Step 2: Convert to fraction form
    344.51/475.03 = 281.40/x
  3. Step 3: Cross multiply
    344.51x = 475.03 × 281.40
  4. Step 4: Simplify right side
    344.51x = 133,673.44
  5. Step 5: Solve for x
    x = 133,673.44/344.51
  6. Step 6: Final answer
    x = 388.01

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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.