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Finding the Fourth Proportional to 608.16, 909.92 and 403.22

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Solution

The fourth proportional to 608.16, 909.92 and 403.22 is: 603.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.16 : 909.92 = 403.22 : x
  2. Step 2: Convert to fraction form
    608.16/909.92 = 403.22/x
  3. Step 3: Cross multiply
    608.16x = 909.92 × 403.22
  4. Step 4: Simplify right side
    608.16x = 366,897.94
  5. Step 5: Solve for x
    x = 366,897.94/608.16
  6. Step 6: Final answer
    x = 603.29

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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.