Finding the Fourth Proportional to 212,903.00, 319,347.56 and 86,505.87
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Solution
The fourth proportional to 212,903.00, 319,347.56 and 86,505.87 is: 129,755.99
Step by Step Solution
- Step 1: Write the proportion equation
212,903.00 : 319,347.56 = 86,505.87 : x - Step 2: Convert to fraction form
212,903.00/319,347.56 = 86,505.87/x - Step 3: Cross multiply
212,903.00x = 319,347.56 × 86,505.87 - Step 4: Simplify right side
212,903.00x = 27,625,438,077.65 - Step 5: Solve for x
x = 27,625,438,077.65/212,903.00 - Step 6: Final answer
x = 129,755.99
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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.