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Finding the Fourth Proportional to 435.41, 601.66 and 317.18

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Solution

The fourth proportional to 435.41, 601.66 and 317.18 is: 438.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.41 : 601.66 = 317.18 : x
  2. Step 2: Convert to fraction form
    435.41/601.66 = 317.18/x
  3. Step 3: Cross multiply
    435.41x = 601.66 × 317.18
  4. Step 4: Simplify right side
    435.41x = 190,833.88
  5. Step 5: Solve for x
    x = 190,833.88/435.41
  6. Step 6: Final answer
    x = 438.28

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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.