Finding the Fourth Proportional to 393,042.40, 542,368.67 and 220,932.99
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Solution
The fourth proportional to 393,042.40, 542,368.67 and 220,932.99 is: 304,870.75
Step by Step Solution
- Step 1: Write the proportion equation
393,042.40 : 542,368.67 = 220,932.99 : x - Step 2: Convert to fraction form
393,042.40/542,368.67 = 220,932.99/x - Step 3: Cross multiply
393,042.40x = 542,368.67 × 220,932.99 - Step 4: Simplify right side
393,042.40x = 119,827,131,945.42 - Step 5: Solve for x
x = 119,827,131,945.42/393,042.40 - Step 6: Final answer
x = 304,870.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.