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Finding the Fourth Proportional to 344.77, 475.80 and 340.18

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Solution

The fourth proportional to 344.77, 475.80 and 340.18 is: 469.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.77 : 475.80 = 340.18 : x
  2. Step 2: Convert to fraction form
    344.77/475.80 = 340.18/x
  3. Step 3: Cross multiply
    344.77x = 475.80 × 340.18
  4. Step 4: Simplify right side
    344.77x = 161,857.64
  5. Step 5: Solve for x
    x = 161,857.64/344.77
  6. Step 6: Final answer
    x = 469.47

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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.