Finding the Fourth Proportional to 236,343.06, 326,157.28 and 128,913.08
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Solution
The fourth proportional to 236,343.06, 326,157.28 and 128,913.08 is: 177,902.15
Step by Step Solution
- Step 1: Write the proportion equation
236,343.06 : 326,157.28 = 128,913.08 : x - Step 2: Convert to fraction form
236,343.06/326,157.28 = 128,913.08/x - Step 3: Cross multiply
236,343.06x = 326,157.28 × 128,913.08 - Step 4: Simplify right side
236,343.06x = 42,045,939,529.22 - Step 5: Solve for x
x = 42,045,939,529.22/236,343.06 - Step 6: Final answer
x = 177,902.15
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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.