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Finding the Fourth Proportional to 438.55, 605.07 and 364.75

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Solution

The fourth proportional to 438.55, 605.07 and 364.75 is: 503.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    438.55 : 605.07 = 364.75 : x
  2. Step 2: Convert to fraction form
    438.55/605.07 = 364.75/x
  3. Step 3: Cross multiply
    438.55x = 605.07 × 364.75
  4. Step 4: Simplify right side
    438.55x = 220,699.28
  5. Step 5: Solve for x
    x = 220,699.28/438.55
  6. Step 6: Final answer
    x = 503.25

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Find fourth proportional to 219.28, 302.54 and 182.38
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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.