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Finding the Fourth Proportional to 403.11, 603.82 and 373.91

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Solution

The fourth proportional to 403.11, 603.82 and 373.91 is: 560.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    403.11 : 603.82 = 373.91 : x
  2. Step 2: Convert to fraction form
    403.11/603.82 = 373.91/x
  3. Step 3: Cross multiply
    403.11x = 603.82 × 373.91
  4. Step 4: Simplify right side
    403.11x = 225,774.34
  5. Step 5: Solve for x
    x = 225,774.34/403.11
  6. Step 6: Final answer
    x = 560.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.