Finding the Fourth Proportional to 212,397.80, 318,640.26 and 177,580.76
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Solution
The fourth proportional to 212,397.80, 318,640.26 and 177,580.76 is: 266,407.56
Step by Step Solution
- Step 1: Write the proportion equation
212,397.80 : 318,640.26 = 177,580.76 : x - Step 2: Convert to fraction form
212,397.80/318,640.26 = 177,580.76/x - Step 3: Cross multiply
212,397.80x = 318,640.26 × 177,580.76 - Step 4: Simplify right side
212,397.80x = 56,584,379,537.40 - Step 5: Solve for x
x = 56,584,379,537.40/212,397.80 - Step 6: Final answer
x = 266,407.56
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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.