Finding the Fourth Proportional to 214,940.70, 296,600.67 and 128,918.70
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Solution
The fourth proportional to 214,940.70, 296,600.67 and 128,918.70 is: 177,897.31
Step by Step Solution
- Step 1: Write the proportion equation
214,940.70 : 296,600.67 = 128,918.70 : x - Step 2: Convert to fraction form
214,940.70/296,600.67 = 128,918.70/x - Step 3: Cross multiply
214,940.70x = 296,600.67 × 128,918.70 - Step 4: Simplify right side
214,940.70x = 38,237,372,795.53 - Step 5: Solve for x
x = 38,237,372,795.53/214,940.70 - Step 6: Final answer
x = 177,897.31
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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.