Finding the Fourth Proportional to 411,736.82, 617,655.05 and 145,442.84
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Solution
The fourth proportional to 411,736.82, 617,655.05 and 145,442.84 is: 218,181.86
Step by Step Solution
- Step 1: Write the proportion equation
411,736.82 : 617,655.05 = 145,442.84 : x - Step 2: Convert to fraction form
411,736.82/617,655.05 = 145,442.84/x - Step 3: Cross multiply
411,736.82x = 617,655.05 × 145,442.84 - Step 4: Simplify right side
411,736.82x = 89,833,503,885.13 - Step 5: Solve for x
x = 89,833,503,885.13/411,736.82 - Step 6: Final answer
x = 218,181.86
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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.