Finding the Fourth Proportional to 272,885.39, 409,371.83 and 115,137.08
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Solution
The fourth proportional to 272,885.39, 409,371.83 and 115,137.08 is: 172,724.07
Step by Step Solution
- Step 1: Write the proportion equation
272,885.39 : 409,371.83 = 115,137.08 : x - Step 2: Convert to fraction form
272,885.39/409,371.83 = 115,137.08/x - Step 3: Cross multiply
272,885.39x = 409,371.83 × 115,137.08 - Step 4: Simplify right side
272,885.39x = 47,133,874,517.91 - Step 5: Solve for x
x = 47,133,874,517.91/272,885.39 - Step 6: Final answer
x = 172,724.07
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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.