Finding the Fourth Proportional to 427,907.21, 590,530.40 and 236,920.60
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Solution
The fourth proportional to 427,907.21, 590,530.40 and 236,920.60 is: 326,960.64
Step by Step Solution
- Step 1: Write the proportion equation
427,907.21 : 590,530.40 = 236,920.60 : x - Step 2: Convert to fraction form
427,907.21/590,530.40 = 236,920.60/x - Step 3: Cross multiply
427,907.21x = 590,530.40 × 236,920.60 - Step 4: Simplify right side
427,907.21x = 139,908,816,686.24 - Step 5: Solve for x
x = 139,908,816,686.24/427,907.21 - Step 6: Final answer
x = 326,960.64
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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.