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Finding the Fourth Proportional to 627.46, 941.19 and 339.46

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Solution

The fourth proportional to 627.46, 941.19 and 339.46 is: 509.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.46 : 941.19 = 339.46 : x
  2. Step 2: Convert to fraction form
    627.46/941.19 = 339.46/x
  3. Step 3: Cross multiply
    627.46x = 941.19 × 339.46
  4. Step 4: Simplify right side
    627.46x = 319,496.36
  5. Step 5: Solve for x
    x = 319,496.36/627.46
  6. Step 6: Final answer
    x = 509.19

Related Problems

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Half scale
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Double scale
Find fourth proportional to 628.46, 942.69 and 340.46
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.