Finding the Fourth Proportional to 272,087.62, 408,130.86 and 72,407.98
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Solution
The fourth proportional to 272,087.62, 408,130.86 and 72,407.98 is: 108,611.82
Step by Step Solution
- Step 1: Write the proportion equation
272,087.62 : 408,130.86 = 72,407.98 : x - Step 2: Convert to fraction form
272,087.62/408,130.86 = 72,407.98/x - Step 3: Cross multiply
272,087.62x = 408,130.86 × 72,407.98 - Step 4: Simplify right side
272,087.62x = 29,551,931,148.26 - Step 5: Solve for x
x = 29,551,931,148.26/272,087.62 - Step 6: Final answer
x = 108,611.82
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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.