Finding the Fourth Proportional to 207,943.30, 312,022.95 and 97,135.30
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Solution
The fourth proportional to 207,943.30, 312,022.95 and 97,135.30 is: 145,753.40
Step by Step Solution
- Step 1: Write the proportion equation
207,943.30 : 312,022.95 = 97,135.30 : x - Step 2: Convert to fraction form
207,943.30/312,022.95 = 97,135.30/x - Step 3: Cross multiply
207,943.30x = 312,022.95 × 97,135.30 - Step 4: Simplify right side
207,943.30x = 30,308,442,855.14 - Step 5: Solve for x
x = 30,308,442,855.14/207,943.30 - Step 6: Final answer
x = 145,753.40
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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.