Finding the Fourth Proportional to 153,659.16, 230,181.30 and 122,122.44
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Solution
The fourth proportional to 153,659.16, 230,181.30 and 122,122.44 is: 182,939.32
Step by Step Solution
- Step 1: Write the proportion equation
153,659.16 : 230,181.30 = 122,122.44 : x - Step 2: Convert to fraction form
153,659.16/230,181.30 = 122,122.44/x - Step 3: Cross multiply
153,659.16x = 230,181.30 × 122,122.44 - Step 4: Simplify right side
153,659.16x = 28,110,301,998.37 - Step 5: Solve for x
x = 28,110,301,998.37/153,659.16 - Step 6: Final answer
x = 182,939.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.