Finding the Fourth Proportional to 224,379.62, 309,644.76 and 122,407.26
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Solution
The fourth proportional to 224,379.62, 309,644.76 and 122,407.26 is: 168,922.50
Step by Step Solution
- Step 1: Write the proportion equation
224,379.62 : 309,644.76 = 122,407.26 : x - Step 2: Convert to fraction form
224,379.62/309,644.76 = 122,407.26/x - Step 3: Cross multiply
224,379.62x = 309,644.76 × 122,407.26 - Step 4: Simplify right side
224,379.62x = 37,902,766,644.96 - Step 5: Solve for x
x = 37,902,766,644.96/224,379.62 - Step 6: Final answer
x = 168,922.50
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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.