Finding the Fourth Proportional to 235,680.85, 325,246.41 and 128,257.81
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Solution
The fourth proportional to 235,680.85, 325,246.41 and 128,257.81 is: 176,999.50
Step by Step Solution
- Step 1: Write the proportion equation
235,680.85 : 325,246.41 = 128,257.81 : x - Step 2: Convert to fraction form
235,680.85/325,246.41 = 128,257.81/x - Step 3: Cross multiply
235,680.85x = 325,246.41 × 128,257.81 - Step 4: Simplify right side
235,680.85x = 41,715,392,256.96 - Step 5: Solve for x
x = 41,715,392,256.96/235,680.85 - Step 6: Final answer
x = 176,999.50
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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.