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Finding the Fourth Proportional to 345.82, 477.23 and 188.44

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Solution

The fourth proportional to 345.82, 477.23 and 188.44 is: 260.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    345.82 : 477.23 = 188.44 : x
  2. Step 2: Convert to fraction form
    345.82/477.23 = 188.44/x
  3. Step 3: Cross multiply
    345.82x = 477.23 × 188.44
  4. Step 4: Simplify right side
    345.82x = 89,929.22
  5. Step 5: Solve for x
    x = 89,929.22/345.82
  6. Step 6: Final answer
    x = 260.05

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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.