Finding the Fourth Proportional to 315,682.60, 435,651.33 and 172,444.99
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Solution
The fourth proportional to 315,682.60, 435,651.33 and 172,444.99 is: 237,979.19
Step by Step Solution
- Step 1: Write the proportion equation
315,682.60 : 435,651.33 = 172,444.99 : x - Step 2: Convert to fraction form
315,682.60/435,651.33 = 172,444.99/x - Step 3: Cross multiply
315,682.60x = 435,651.33 × 172,444.99 - Step 4: Simplify right side
315,682.60x = 75,125,889,245.34 - Step 5: Solve for x
x = 75,125,889,245.34/315,682.60 - Step 6: Final answer
x = 237,979.19
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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.