Finding the Fourth Proportional to 230,899.93, 318,638.86 and 128,927.14
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Solution
The fourth proportional to 230,899.93, 318,638.86 and 128,927.14 is: 177,917.75
Step by Step Solution
- Step 1: Write the proportion equation
230,899.93 : 318,638.86 = 128,927.14 : x - Step 2: Convert to fraction form
230,899.93/318,638.86 = 128,927.14/x - Step 3: Cross multiply
230,899.93x = 318,638.86 × 128,927.14 - Step 4: Simplify right side
230,899.93x = 41,081,195,793.75 - Step 5: Solve for x
x = 41,081,195,793.75/230,899.93 - Step 6: Final answer
x = 177,917.75
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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.