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Finding the Fourth Proportional to 403.54, 608.26 and 368.98

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Solution

The fourth proportional to 403.54, 608.26 and 368.98 is: 556.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    403.54 : 608.26 = 368.98 : x
  2. Step 2: Convert to fraction form
    403.54/608.26 = 368.98/x
  3. Step 3: Cross multiply
    403.54x = 608.26 × 368.98
  4. Step 4: Simplify right side
    403.54x = 224,435.77
  5. Step 5: Solve for x
    x = 224,435.77/403.54
  6. Step 6: Final answer
    x = 556.17

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.