Finding the Fourth Proportional to 311,567.40, 467,326.80 and 121,990.95
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Solution
The fourth proportional to 311,567.40, 467,326.80 and 121,990.95 is: 182,976.91
Step by Step Solution
- Step 1: Write the proportion equation
311,567.40 : 467,326.80 = 121,990.95 : x - Step 2: Convert to fraction form
311,567.40/467,326.80 = 121,990.95/x - Step 3: Cross multiply
311,567.40x = 467,326.80 × 121,990.95 - Step 4: Simplify right side
311,567.40x = 57,009,640,292.46 - Step 5: Solve for x
x = 57,009,640,292.46/311,567.40 - Step 6: Final answer
x = 182,976.91
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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.