Finding the Fourth Proportional to 393,470.96, 542,922.23 and 221,365.00
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Solution
The fourth proportional to 393,470.96, 542,922.23 and 221,365.00 is: 305,445.61
Step by Step Solution
- Step 1: Write the proportion equation
393,470.96 : 542,922.23 = 221,365.00 : x - Step 2: Convert to fraction form
393,470.96/542,922.23 = 221,365.00/x - Step 3: Cross multiply
393,470.96x = 542,922.23 × 221,365.00 - Step 4: Simplify right side
393,470.96x = 120,183,975,622.51 - Step 5: Solve for x
x = 120,183,975,622.51/393,470.96 - Step 6: Final answer
x = 305,445.61
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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.