Finding the Fourth Proportional to 230,790.44, 318,477.86 and 128,822.48
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Solution
The fourth proportional to 230,790.44, 318,477.86 and 128,822.48 is: 177,767.79
Step by Step Solution
- Step 1: Write the proportion equation
230,790.44 : 318,477.86 = 128,822.48 : x - Step 2: Convert to fraction form
230,790.44/318,477.86 = 128,822.48/x - Step 3: Cross multiply
230,790.44x = 318,477.86 × 128,822.48 - Step 4: Simplify right side
230,790.44x = 41,027,107,191.17 - Step 5: Solve for x
x = 41,027,107,191.17/230,790.44 - Step 6: Final answer
x = 177,767.79
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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.