Finding the Fourth Proportional to 212,821.95, 319,232.93 and 124,175.55
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Solution
The fourth proportional to 212,821.95, 319,232.93 and 124,175.55 is: 186,263.33
Step by Step Solution
- Step 1: Write the proportion equation
212,821.95 : 319,232.93 = 124,175.55 : x - Step 2: Convert to fraction form
212,821.95/319,232.93 = 124,175.55/x - Step 3: Cross multiply
212,821.95x = 319,232.93 × 124,175.55 - Step 4: Simplify right side
212,821.95x = 39,640,924,039.98 - Step 5: Solve for x
x = 39,640,924,039.98/212,821.95 - Step 6: Final answer
x = 186,263.33
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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.