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Finding the Fourth Proportional to 375.89, 518.15 and 368.60

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Solution

The fourth proportional to 375.89, 518.15 and 368.60 is: 508.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.89 : 518.15 = 368.60 : x
  2. Step 2: Convert to fraction form
    375.89/518.15 = 368.60/x
  3. Step 3: Cross multiply
    375.89x = 518.15 × 368.60
  4. Step 4: Simplify right side
    375.89x = 190,988.25
  5. Step 5: Solve for x
    x = 190,988.25/375.89
  6. Step 6: Final answer
    x = 508.10

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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.