Finding the Fourth Proportional to 235,412.67, 353,069.19 and 77,603.61
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Solution
The fourth proportional to 235,412.67, 353,069.19 and 77,603.61 is: 116,388.99
Step by Step Solution
- Step 1: Write the proportion equation
235,412.67 : 353,069.19 = 77,603.61 : x - Step 2: Convert to fraction form
235,412.67/353,069.19 = 77,603.61/x - Step 3: Cross multiply
235,412.67x = 353,069.19 × 77,603.61 - Step 4: Simplify right side
235,412.67x = 27,399,443,723.78 - Step 5: Solve for x
x = 27,399,443,723.78/235,412.67 - Step 6: Final answer
x = 116,388.99
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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.