Finding the Fourth Proportional to 248,456.43, 342,844.11 and 139,572.99
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Solution
The fourth proportional to 248,456.43, 342,844.11 and 139,572.99 is: 192,596.25
Step by Step Solution
- Step 1: Write the proportion equation
248,456.43 : 342,844.11 = 139,572.99 : x - Step 2: Convert to fraction form
248,456.43/342,844.11 = 139,572.99/x - Step 3: Cross multiply
248,456.43x = 342,844.11 × 139,572.99 - Step 4: Simplify right side
248,456.43x = 47,851,777,536.59 - Step 5: Solve for x
x = 47,851,777,536.59/248,456.43 - Step 6: Final answer
x = 192,596.25
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1.5x scale
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.