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Finding the Fourth Proportional to 435.26, 599.79 and 317.04

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Solution

The fourth proportional to 435.26, 599.79 and 317.04 is: 436.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.26 : 599.79 = 317.04 : x
  2. Step 2: Convert to fraction form
    435.26/599.79 = 317.04/x
  3. Step 3: Cross multiply
    435.26x = 599.79 × 317.04
  4. Step 4: Simplify right side
    435.26x = 190,157.42
  5. Step 5: Solve for x
    x = 190,157.42/435.26
  6. Step 6: Final answer
    x = 436.88

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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.