Finding the Fourth Proportional to 298,487.08, 411,915.00 and 171,138.07
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Solution
The fourth proportional to 298,487.08, 411,915.00 and 171,138.07 is: 236,172.15
Step by Step Solution
- Step 1: Write the proportion equation
298,487.08 : 411,915.00 = 171,138.07 : x - Step 2: Convert to fraction form
298,487.08/411,915.00 = 171,138.07/x - Step 3: Cross multiply
298,487.08x = 411,915.00 × 171,138.07 - Step 4: Simplify right side
298,487.08x = 70,494,335,499.71 - Step 5: Solve for x
x = 70,494,335,499.71/298,487.08 - Step 6: Final answer
x = 236,172.15
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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.