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Finding the Fourth Proportional to 368.07, 507.60 and 331.62

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Solution

The fourth proportional to 368.07, 507.60 and 331.62 is: 457.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.07 : 507.60 = 331.62 : x
  2. Step 2: Convert to fraction form
    368.07/507.60 = 331.62/x
  3. Step 3: Cross multiply
    368.07x = 507.60 × 331.62
  4. Step 4: Simplify right side
    368.07x = 168,330.31
  5. Step 5: Solve for x
    x = 168,330.31/368.07
  6. Step 6: Final answer
    x = 457.33

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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.