Finding the Fourth Proportional to 305,611.88, 458,313.99 and 105,885.63
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Solution
The fourth proportional to 305,611.88, 458,313.99 and 105,885.63 is: 158,792.47
Step by Step Solution
- Step 1: Write the proportion equation
305,611.88 : 458,313.99 = 105,885.63 : x - Step 2: Convert to fraction form
305,611.88/458,313.99 = 105,885.63/x - Step 3: Cross multiply
305,611.88x = 458,313.99 × 105,885.63 - Step 4: Simplify right side
305,611.88x = 48,528,865,568.96 - Step 5: Solve for x
x = 48,528,865,568.96/305,611.88 - Step 6: Final answer
x = 158,792.47
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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.