Finding the Fourth Proportional to 235,669.08, 325,218.02 and 128,239.41
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Solution
The fourth proportional to 235,669.08, 325,218.02 and 128,239.41 is: 176,967.49
Step by Step Solution
- Step 1: Write the proportion equation
235,669.08 : 325,218.02 = 128,239.41 : x - Step 2: Convert to fraction form
235,669.08/325,218.02 = 128,239.41/x - Step 3: Cross multiply
235,669.08x = 325,218.02 × 128,239.41 - Step 4: Simplify right side
235,669.08x = 41,705,766,364.97 - Step 5: Solve for x
x = 41,705,766,364.97/235,669.08 - Step 6: Final answer
x = 176,967.49
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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.