Finding the Fourth Proportional to 207,646.08, 311,495.05 and 81,269.98
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Solution
The fourth proportional to 207,646.08, 311,495.05 and 81,269.98 is: 121,915.12
Step by Step Solution
- Step 1: Write the proportion equation
207,646.08 : 311,495.05 = 81,269.98 : x - Step 2: Convert to fraction form
207,646.08/311,495.05 = 81,269.98/x - Step 3: Cross multiply
207,646.08x = 311,495.05 × 81,269.98 - Step 4: Simplify right side
207,646.08x = 25,315,196,483.60 - Step 5: Solve for x
x = 25,315,196,483.60/207,646.08 - Step 6: Final answer
x = 121,915.12
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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.