Finding the Fourth Proportional to 373,643.77, 515,639.79 and 212,522.02
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Solution
The fourth proportional to 373,643.77, 515,639.79 and 212,522.02 is: 293,286.86
Step by Step Solution
- Step 1: Write the proportion equation
373,643.77 : 515,639.79 = 212,522.02 : x - Step 2: Convert to fraction form
373,643.77/515,639.79 = 212,522.02/x - Step 3: Cross multiply
373,643.77x = 515,639.79 × 212,522.02 - Step 4: Simplify right side
373,643.77x = 109,584,809,763.18 - Step 5: Solve for x
x = 109,584,809,763.18/373,643.77 - Step 6: Final answer
x = 293,286.86
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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.