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Finding the Fourth Proportional to 361.99, 539.54 and 341.49

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Solution

The fourth proportional to 361.99, 539.54 and 341.49 is: 508.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.99 : 539.54 = 341.49 : x
  2. Step 2: Convert to fraction form
    361.99/539.54 = 341.49/x
  3. Step 3: Cross multiply
    361.99x = 539.54 × 341.49
  4. Step 4: Simplify right side
    361.99x = 184,247.51
  5. Step 5: Solve for x
    x = 184,247.51/361.99
  6. Step 6: Final answer
    x = 508.99

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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.