Finding the Fourth Proportional to 401,331.74, 601,990.72 and 135,092.23
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Solution
The fourth proportional to 401,331.74, 601,990.72 and 135,092.23 is: 202,636.02
Step by Step Solution
- Step 1: Write the proportion equation
401,331.74 : 601,990.72 = 135,092.23 : x - Step 2: Convert to fraction form
401,331.74/601,990.72 = 135,092.23/x - Step 3: Cross multiply
401,331.74x = 601,990.72 × 135,092.23 - Step 4: Simplify right side
401,331.74x = 81,324,266,961.40 - Step 5: Solve for x
x = 81,324,266,961.40/401,331.74 - Step 6: Final answer
x = 202,636.02
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.