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Finding the Fourth Proportional to 608.36, 912.48 and 283.68

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Solution

The fourth proportional to 608.36, 912.48 and 283.68 is: 425.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.36 : 912.48 = 283.68 : x
  2. Step 2: Convert to fraction form
    608.36/912.48 = 283.68/x
  3. Step 3: Cross multiply
    608.36x = 912.48 × 283.68
  4. Step 4: Simplify right side
    608.36x = 258,852.33
  5. Step 5: Solve for x
    x = 258,852.33/608.36
  6. Step 6: Final answer
    x = 425.49

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Similar ratio
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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.