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Finding the Fourth Proportional to 403.41, 556.63 and 341.11

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Solution

The fourth proportional to 403.41, 556.63 and 341.11 is: 470.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    403.41 : 556.63 = 341.11 : x
  2. Step 2: Convert to fraction form
    403.41/556.63 = 341.11/x
  3. Step 3: Cross multiply
    403.41x = 556.63 × 341.11
  4. Step 4: Simplify right side
    403.41x = 189,872.06
  5. Step 5: Solve for x
    x = 189,872.06/403.41
  6. Step 6: Final answer
    x = 470.67

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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.