Finding the Fourth Proportional to 285,055.48, 393,360.18 and 157,724.68
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Solution
The fourth proportional to 285,055.48, 393,360.18 and 157,724.68 is: 217,650.99
Step by Step Solution
- Step 1: Write the proportion equation
285,055.48 : 393,360.18 = 157,724.68 : x - Step 2: Convert to fraction form
285,055.48/393,360.18 = 157,724.68/x - Step 3: Cross multiply
285,055.48x = 393,360.18 × 157,724.68 - Step 4: Simplify right side
285,055.48x = 62,042,608,515.24 - Step 5: Solve for x
x = 62,042,608,515.24/285,055.48 - Step 6: Final answer
x = 217,650.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.