Finding the Fourth Proportional to 393,060.29, 542,419.91 and 220,978.99
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Solution
The fourth proportional to 393,060.29, 542,419.91 and 220,978.99 is: 304,949.16
Step by Step Solution
- Step 1: Write the proportion equation
393,060.29 : 542,419.91 = 220,978.99 : x - Step 2: Convert to fraction form
393,060.29/542,419.91 = 220,978.99/x - Step 3: Cross multiply
393,060.29x = 542,419.91 × 220,978.99 - Step 4: Simplify right side
393,060.29x = 119,863,404,269.49 - Step 5: Solve for x
x = 119,863,404,269.49/393,060.29 - Step 6: Final answer
x = 304,949.16
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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.