Finding the Fourth Proportional to 379,934.18, 524,257.82 and 216,611.76
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Solution
The fourth proportional to 379,934.18, 524,257.82 and 216,611.76 is: 298,894.95
Step by Step Solution
- Step 1: Write the proportion equation
379,934.18 : 524,257.82 = 216,611.76 : x - Step 2: Convert to fraction form
379,934.18/524,257.82 = 216,611.76/x - Step 3: Cross multiply
379,934.18x = 524,257.82 × 216,611.76 - Step 4: Simplify right side
379,934.18x = 113,560,409,083.96 - Step 5: Solve for x
x = 113,560,409,083.96/379,934.18 - Step 6: Final answer
x = 298,894.95
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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.