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Finding the Fourth Proportional to 402.96, 607.53 and 367.32

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Solution

The fourth proportional to 402.96, 607.53 and 367.32 is: 553.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    402.96 : 607.53 = 367.32 : x
  2. Step 2: Convert to fraction form
    402.96/607.53 = 367.32/x
  3. Step 3: Cross multiply
    402.96x = 607.53 × 367.32
  4. Step 4: Simplify right side
    402.96x = 223,157.92
  5. Step 5: Solve for x
    x = 223,157.92/402.96
  6. Step 6: Final answer
    x = 553.80

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.