Finding the Fourth Proportional to 305,247.48, 421,211.50 and 169,279.05
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Solution
The fourth proportional to 305,247.48, 421,211.50 and 169,279.05 is: 233,588.44
Step by Step Solution
- Step 1: Write the proportion equation
305,247.48 : 421,211.50 = 169,279.05 : x - Step 2: Convert to fraction form
305,247.48/421,211.50 = 169,279.05/x - Step 3: Cross multiply
305,247.48x = 421,211.50 × 169,279.05 - Step 4: Simplify right side
305,247.48x = 71,302,282,569.08 - Step 5: Solve for x
x = 71,302,282,569.08/305,247.48 - Step 6: Final answer
x = 233,588.44
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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.