Finding the Fourth Proportional to 256,135.40, 353,465.19 and 141,421.19
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Solution
The fourth proportional to 256,135.40, 353,465.19 and 141,421.19 is: 195,160.32
Step by Step Solution
- Step 1: Write the proportion equation
256,135.40 : 353,465.19 = 141,421.19 : x - Step 2: Convert to fraction form
256,135.40/353,465.19 = 141,421.19/x - Step 3: Cross multiply
256,135.40x = 353,465.19 × 141,421.19 - Step 4: Simplify right side
256,135.40x = 49,987,466,026.05 - Step 5: Solve for x
x = 49,987,466,026.05/256,135.40 - Step 6: Final answer
x = 195,160.32
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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.