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Finding the Fourth Proportional to 435.19, 600.06 and 398.35

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Solution

The fourth proportional to 435.19, 600.06 and 398.35 is: 549.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.19 : 600.06 = 398.35 : x
  2. Step 2: Convert to fraction form
    435.19/600.06 = 398.35/x
  3. Step 3: Cross multiply
    435.19x = 600.06 × 398.35
  4. Step 4: Simplify right side
    435.19x = 239,033.90
  5. Step 5: Solve for x
    x = 239,033.90/435.19
  6. Step 6: Final answer
    x = 549.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.