Finding the Fourth Proportional to 253,569.09, 349,936.29 and 140,391.84
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Solution
The fourth proportional to 253,569.09, 349,936.29 and 140,391.84 is: 193,746.80
Step by Step Solution
- Step 1: Write the proportion equation
253,569.09 : 349,936.29 = 140,391.84 : x - Step 2: Convert to fraction form
253,569.09/349,936.29 = 140,391.84/x - Step 3: Cross multiply
253,569.09x = 349,936.29 × 140,391.84 - Step 4: Simplify right side
253,569.09x = 49,128,200,948.13 - Step 5: Solve for x
x = 49,128,200,948.13/253,569.09 - Step 6: Final answer
x = 193,746.80
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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.