Finding the Fourth Proportional to 411,716.59, 617,463.77 and 145,442.05
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Solution
The fourth proportional to 411,716.59, 617,463.77 and 145,442.05 is: 218,123.82
Step by Step Solution
- Step 1: Write the proportion equation
411,716.59 : 617,463.77 = 145,442.05 : x - Step 2: Convert to fraction form
411,716.59/617,463.77 = 145,442.05/x - Step 3: Cross multiply
411,716.59x = 617,463.77 × 145,442.05 - Step 4: Simplify right side
411,716.59x = 89,805,192,695.00 - Step 5: Solve for x
x = 89,805,192,695.00/411,716.59 - Step 6: Final answer
x = 218,123.82
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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.