Finding the Fourth Proportional to 342,612.18, 472,799.07 and 189,647.09
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Solution
The fourth proportional to 342,612.18, 472,799.07 and 189,647.09 is: 261,709.80
Step by Step Solution
- Step 1: Write the proportion equation
342,612.18 : 472,799.07 = 189,647.09 : x - Step 2: Convert to fraction form
342,612.18/472,799.07 = 189,647.09/x - Step 3: Cross multiply
342,612.18x = 472,799.07 × 189,647.09 - Step 4: Simplify right side
342,612.18x = 89,664,965,416.21 - Step 5: Solve for x
x = 89,664,965,416.21/342,612.18 - Step 6: Final answer
x = 261,709.80
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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.