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Finding the Fourth Proportional to 603.06, 903.86 and 343.28

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Solution

The fourth proportional to 603.06, 903.86 and 343.28 is: 514.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.06 : 903.86 = 343.28 : x
  2. Step 2: Convert to fraction form
    603.06/903.86 = 343.28/x
  3. Step 3: Cross multiply
    603.06x = 903.86 × 343.28
  4. Step 4: Simplify right side
    603.06x = 310,277.06
  5. Step 5: Solve for x
    x = 310,277.06/603.06
  6. Step 6: Final answer
    x = 514.50

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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.