Finding the Fourth Proportional to 274,491.84, 378,497.92 and 178,821.12
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Solution
The fourth proportional to 274,491.84, 378,497.92 and 178,821.12 is: 246,577.17
Step by Step Solution
- Step 1: Write the proportion equation
274,491.84 : 378,497.92 = 178,821.12 : x - Step 2: Convert to fraction form
274,491.84/378,497.92 = 178,821.12/x - Step 3: Cross multiply
274,491.84x = 378,497.92 × 178,821.12 - Step 4: Simplify right side
274,491.84x = 67,683,421,972.07 - Step 5: Solve for x
x = 67,683,421,972.07/274,491.84 - Step 6: Final answer
x = 246,577.17
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.