Finding the Fourth Proportional to 298,494.42, 411,951.36 and 222,911.70
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Solution
The fourth proportional to 298,494.42, 411,951.36 and 222,911.70 is: 307,639.85
Step by Step Solution
- Step 1: Write the proportion equation
298,494.42 : 411,951.36 = 222,911.70 : x - Step 2: Convert to fraction form
298,494.42/411,951.36 = 222,911.70/x - Step 3: Cross multiply
298,494.42x = 411,951.36 × 222,911.70 - Step 4: Simplify right side
298,494.42x = 91,828,777,974.91 - Step 5: Solve for x
x = 91,828,777,974.91/298,494.42 - Step 6: Final answer
x = 307,639.85
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1.5x scale
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.