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Finding the Fourth Proportional to 403.29, 603.59 and 297.18

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Solution

The fourth proportional to 403.29, 603.59 and 297.18 is: 444.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    403.29 : 603.59 = 297.18 : x
  2. Step 2: Convert to fraction form
    403.29/603.59 = 297.18/x
  3. Step 3: Cross multiply
    403.29x = 603.59 × 297.18
  4. Step 4: Simplify right side
    403.29x = 179,373.39
  5. Step 5: Solve for x
    x = 179,373.39/403.29
  6. Step 6: Final answer
    x = 444.78

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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.