Finding the Fourth Proportional to 151,679.74, 210,202.75 and 149,539.21
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Solution
The fourth proportional to 151,679.74, 210,202.75 and 149,539.21 is: 207,236.33
Step by Step Solution
- Step 1: Write the proportion equation
151,679.74 : 210,202.75 = 149,539.21 : x - Step 2: Convert to fraction form
151,679.74/210,202.75 = 149,539.21/x - Step 3: Cross multiply
151,679.74x = 210,202.75 × 149,539.21 - Step 4: Simplify right side
151,679.74x = 31,433,553,177.48 - Step 5: Solve for x
x = 31,433,553,177.48/151,679.74 - Step 6: Final answer
x = 207,236.33
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.