Finding the Fourth Proportional to 235,715.34, 325,280.94 and 128,283.09
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Solution
The fourth proportional to 235,715.34, 325,280.94 and 128,283.09 is: 177,027.27
Step by Step Solution
- Step 1: Write the proportion equation
235,715.34 : 325,280.94 = 128,283.09 : x - Step 2: Convert to fraction form
235,715.34/325,280.94 = 128,283.09/x - Step 3: Cross multiply
235,715.34x = 325,280.94 × 128,283.09 - Step 4: Simplify right side
235,715.34x = 41,728,044,101.30 - Step 5: Solve for x
x = 41,728,044,101.30/235,715.34 - Step 6: Final answer
x = 177,027.27
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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.