Finding the Fourth Proportional to 253,612.53, 349,995.84 and 140,435.28
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Solution
The fourth proportional to 253,612.53, 349,995.84 and 140,435.28 is: 193,806.53
Step by Step Solution
- Step 1: Write the proportion equation
253,612.53 : 349,995.84 = 140,435.28 : x - Step 2: Convert to fraction form
253,612.53/349,995.84 = 140,435.28/x - Step 3: Cross multiply
253,612.53x = 349,995.84 × 140,435.28 - Step 4: Simplify right side
253,612.53x = 49,151,763,789.24 - Step 5: Solve for x
x = 49,151,763,789.24/253,612.53 - Step 6: Final answer
x = 193,806.53
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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.