Finding the Fourth Proportional to 235,672.08, 325,227.56 and 128,239.81
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Solution
The fourth proportional to 235,672.08, 325,227.56 and 128,239.81 is: 176,970.98
Step by Step Solution
- Step 1: Write the proportion equation
235,672.08 : 325,227.56 = 128,239.81 : x - Step 2: Convert to fraction form
235,672.08/325,227.56 = 128,239.81/x - Step 3: Cross multiply
235,672.08x = 325,227.56 × 128,239.81 - Step 4: Simplify right side
235,672.08x = 41,707,119,046.90 - Step 5: Solve for x
x = 41,707,119,046.90/235,672.08 - Step 6: Final answer
x = 176,970.98
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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.