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Finding the Fourth Proportional to 373.55, 511.79 and 368.42

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Solution

The fourth proportional to 373.55, 511.79 and 368.42 is: 504.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.55 : 511.79 = 368.42 : x
  2. Step 2: Convert to fraction form
    373.55/511.79 = 368.42/x
  3. Step 3: Cross multiply
    373.55x = 511.79 × 368.42
  4. Step 4: Simplify right side
    373.55x = 188,549.27
  5. Step 5: Solve for x
    x = 188,549.27/373.55
  6. Step 6: Final answer
    x = 504.76

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.