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Finding the Fourth Proportional to 403.67, 601.98 and 359.43

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Solution

The fourth proportional to 403.67, 601.98 and 359.43 is: 535.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    403.67 : 601.98 = 359.43 : x
  2. Step 2: Convert to fraction form
    403.67/601.98 = 359.43/x
  3. Step 3: Cross multiply
    403.67x = 601.98 × 359.43
  4. Step 4: Simplify right side
    403.67x = 216,366.07
  5. Step 5: Solve for x
    x = 216,366.07/403.67
  6. Step 6: Final answer
    x = 535.99

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.