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Finding the Fourth Proportional to 337,316.40, 505,974.60 and 274,330.80

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Solution

The fourth proportional to 337,316.40, 505,974.60 and 274,330.80 is: 411,496.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,316.40 : 505,974.60 = 274,330.80 : x
  2. Step 2: Convert to fraction form
    337,316.40/505,974.60 = 274,330.80/x
  3. Step 3: Cross multiply
    337,316.40x = 505,974.60 × 274,330.80
  4. Step 4: Simplify right side
    337,316.40x = 138,804,416,797.68
  5. Step 5: Solve for x
    x = 138,804,416,797.68/337,316.40
  6. Step 6: Final answer
    x = 411,496.20

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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.