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Finding the Fourth Proportional to 608.79, 913.26 and 192.22

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Solution

The fourth proportional to 608.79, 913.26 and 192.22 is: 288.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.79 : 913.26 = 192.22 : x
  2. Step 2: Convert to fraction form
    608.79/913.26 = 192.22/x
  3. Step 3: Cross multiply
    608.79x = 913.26 × 192.22
  4. Step 4: Simplify right side
    608.79x = 175,546.84
  5. Step 5: Solve for x
    x = 175,546.84/608.79
  6. Step 6: Final answer
    x = 288.35

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1.5x scale

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.