Finding the Fourth Proportional to 274,348.84, 411,515.52 and 74,670.96
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Solution
The fourth proportional to 274,348.84, 411,515.52 and 74,670.96 is: 112,004.33
Step by Step Solution
- Step 1: Write the proportion equation
274,348.84 : 411,515.52 = 74,670.96 : x - Step 2: Convert to fraction form
274,348.84/411,515.52 = 74,670.96/x - Step 3: Cross multiply
274,348.84x = 411,515.52 × 74,670.96 - Step 4: Simplify right side
274,348.84x = 30,728,256,875.72 - Step 5: Solve for x
x = 30,728,256,875.72/274,348.84 - Step 6: Final answer
x = 112,004.33
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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.