Finding the Fourth Proportional to 235,996.98, 325,674.23 and 128,567.09
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Solution
The fourth proportional to 235,996.98, 325,674.23 and 128,567.09 is: 177,421.70
Step by Step Solution
- Step 1: Write the proportion equation
235,996.98 : 325,674.23 = 128,567.09 : x - Step 2: Convert to fraction form
235,996.98/325,674.23 = 128,567.09/x - Step 3: Cross multiply
235,996.98x = 325,674.23 × 128,567.09 - Step 4: Simplify right side
235,996.98x = 41,870,985,767.88 - Step 5: Solve for x
x = 41,870,985,767.88/235,996.98 - Step 6: Final answer
x = 177,421.70
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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.