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Finding the Fourth Proportional to 438.86, 604.50 and 368.84

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Solution

The fourth proportional to 438.86, 604.50 and 368.84 is: 508.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    438.86 : 604.50 = 368.84 : x
  2. Step 2: Convert to fraction form
    438.86/604.50 = 368.84/x
  3. Step 3: Cross multiply
    438.86x = 604.50 × 368.84
  4. Step 4: Simplify right side
    438.86x = 222,963.78
  5. Step 5: Solve for x
    x = 222,963.78/438.86
  6. Step 6: Final answer
    x = 508.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.