Finding the Fourth Proportional to 397,075.14, 547,963.68 and 218,227.14
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Solution
The fourth proportional to 397,075.14, 547,963.68 and 218,227.14 is: 301,153.45
Step by Step Solution
- Step 1: Write the proportion equation
397,075.14 : 547,963.68 = 218,227.14 : x - Step 2: Convert to fraction form
397,075.14/547,963.68 = 218,227.14/x - Step 3: Cross multiply
397,075.14x = 547,963.68 × 218,227.14 - Step 4: Simplify right side
397,075.14x = 119,580,546,710.28 - Step 5: Solve for x
x = 119,580,546,710.28/397,075.14 - Step 6: Final answer
x = 301,153.45
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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.