Finding the Fourth Proportional to 305,263.48, 421,264.84 and 169,310.12
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Solution
The fourth proportional to 305,263.48, 421,264.84 and 169,310.12 is: 233,648.65
Step by Step Solution
- Step 1: Write the proportion equation
305,263.48 : 421,264.84 = 169,310.12 : x - Step 2: Convert to fraction form
305,263.48/421,264.84 = 169,310.12/x - Step 3: Cross multiply
305,263.48x = 421,264.84 × 169,310.12 - Step 4: Simplify right side
305,263.48x = 71,324,400,612.18 - Step 5: Solve for x
x = 71,324,400,612.18/305,263.48 - Step 6: Final answer
x = 233,648.65
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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.