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Finding the Fourth Proportional to 608.51, 912.60 and 262.05

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Solution

The fourth proportional to 608.51, 912.60 and 262.05 is: 393.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.51 : 912.60 = 262.05 : x
  2. Step 2: Convert to fraction form
    608.51/912.60 = 262.05/x
  3. Step 3: Cross multiply
    608.51x = 912.60 × 262.05
  4. Step 4: Simplify right side
    608.51x = 239,146.83
  5. Step 5: Solve for x
    x = 239,146.83/608.51
  6. Step 6: Final answer
    x = 393.01

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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.