Finding the Fourth Proportional to 235,855.29, 325,478.93 and 128,425.07
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Solution
The fourth proportional to 235,855.29, 325,478.93 and 128,425.07 is: 177,225.84
Step by Step Solution
- Step 1: Write the proportion equation
235,855.29 : 325,478.93 = 128,425.07 : x - Step 2: Convert to fraction form
235,855.29/325,478.93 = 128,425.07/x - Step 3: Cross multiply
235,855.29x = 325,478.93 × 128,425.07 - Step 4: Simplify right side
235,855.29x = 41,799,652,709.53 - Step 5: Solve for x
x = 41,799,652,709.53/235,855.29 - Step 6: Final answer
x = 177,225.84
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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.