Finding the Fourth Proportional to 287,799.68, 397,161.76 and 160,476.80
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Solution
The fourth proportional to 287,799.68, 397,161.76 and 160,476.80 is: 221,456.98
Step by Step Solution
- Step 1: Write the proportion equation
287,799.68 : 397,161.76 = 160,476.80 : x - Step 2: Convert to fraction form
287,799.68/397,161.76 = 160,476.80/x - Step 3: Cross multiply
287,799.68x = 397,161.76 × 160,476.80 - Step 4: Simplify right side
287,799.68x = 63,735,248,327.17 - Step 5: Solve for x
x = 63,735,248,327.17/287,799.68 - Step 6: Final answer
x = 221,456.98
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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.