Finding the Fourth Proportional to 212,037.84, 292,614.45 and 115,241.67
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Solution
The fourth proportional to 212,037.84, 292,614.45 and 115,241.67 is: 159,034.72
Step by Step Solution
- Step 1: Write the proportion equation
212,037.84 : 292,614.45 = 115,241.67 : x - Step 2: Convert to fraction form
212,037.84/292,614.45 = 115,241.67/x - Step 3: Cross multiply
212,037.84x = 292,614.45 × 115,241.67 - Step 4: Simplify right side
212,037.84x = 33,721,377,884.13 - Step 5: Solve for x
x = 33,721,377,884.13/212,037.84 - Step 6: Final answer
x = 159,034.72
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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.