Finding the Fourth Proportional to 268,743.99, 403,174.30 and 81,750.63
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Solution
The fourth proportional to 268,743.99, 403,174.30 and 81,750.63 is: 122,643.68
Step by Step Solution
- Step 1: Write the proportion equation
268,743.99 : 403,174.30 = 81,750.63 : x - Step 2: Convert to fraction form
268,743.99/403,174.30 = 81,750.63/x - Step 3: Cross multiply
268,743.99x = 403,174.30 × 81,750.63 - Step 4: Simplify right side
268,743.99x = 32,959,753,024.81 - Step 5: Solve for x
x = 32,959,753,024.81/268,743.99 - Step 6: Final answer
x = 122,643.68
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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.