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Finding the Fourth Proportional to 603.96, 904.26 and 310.83

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Solution

The fourth proportional to 603.96, 904.26 and 310.83 is: 465.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.96 : 904.26 = 310.83 : x
  2. Step 2: Convert to fraction form
    603.96/904.26 = 310.83/x
  3. Step 3: Cross multiply
    603.96x = 904.26 × 310.83
  4. Step 4: Simplify right side
    603.96x = 281,071.14
  5. Step 5: Solve for x
    x = 281,071.14/603.96
  6. Step 6: Final answer
    x = 465.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.