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Finding the Fourth Proportional to 608.39, 912.51 and 243.08

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Solution

The fourth proportional to 608.39, 912.51 and 243.08 is: 364.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.39 : 912.51 = 243.08 : x
  2. Step 2: Convert to fraction form
    608.39/912.51 = 243.08/x
  3. Step 3: Cross multiply
    608.39x = 912.51 × 243.08
  4. Step 4: Simplify right side
    608.39x = 221,808.37
  5. Step 5: Solve for x
    x = 221,808.37/608.39
  6. Step 6: Final answer
    x = 364.59

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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.