Finding the Fourth Proportional to 386,281.62, 533,069.82 and 214,211.70
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Solution
The fourth proportional to 386,281.62, 533,069.82 and 214,211.70 is: 295,612.80
Step by Step Solution
- Step 1: Write the proportion equation
386,281.62 : 533,069.82 = 214,211.70 : x - Step 2: Convert to fraction form
386,281.62/533,069.82 = 214,211.70/x - Step 3: Cross multiply
386,281.62x = 533,069.82 × 214,211.70 - Step 4: Simplify right side
386,281.62x = 114,189,792,360.89 - Step 5: Solve for x
x = 114,189,792,360.89/386,281.62 - Step 6: Final answer
x = 295,612.80
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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.