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Finding the Fourth Proportional to 438.75, 605.10 and 333.84

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Solution

The fourth proportional to 438.75, 605.10 and 333.84 is: 460.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    438.75 : 605.10 = 333.84 : x
  2. Step 2: Convert to fraction form
    438.75/605.10 = 333.84/x
  3. Step 3: Cross multiply
    438.75x = 605.10 × 333.84
  4. Step 4: Simplify right side
    438.75x = 202,006.58
  5. Step 5: Solve for x
    x = 202,006.58/438.75
  6. Step 6: Final answer
    x = 460.41

Related Problems

Find fourth proportional to 219.38, 302.55 and 166.92
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Double scale
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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.