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Finding the Fourth Proportional to 435.79, 601.62 and 303.19

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Solution

The fourth proportional to 435.79, 601.62 and 303.19 is: 418.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.79 : 601.62 = 303.19 : x
  2. Step 2: Convert to fraction form
    435.79/601.62 = 303.19/x
  3. Step 3: Cross multiply
    435.79x = 601.62 × 303.19
  4. Step 4: Simplify right side
    435.79x = 182,405.17
  5. Step 5: Solve for x
    x = 182,405.17/435.79
  6. Step 6: Final answer
    x = 418.56

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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.