Finding the Fourth Proportional to 150,188.99, 207,260.25 and 81,278.31
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Solution
The fourth proportional to 150,188.99, 207,260.25 and 81,278.31 is: 112,163.77
Step by Step Solution
- Step 1: Write the proportion equation
150,188.99 : 207,260.25 = 81,278.31 : x - Step 2: Convert to fraction form
150,188.99/207,260.25 = 81,278.31/x - Step 3: Cross multiply
150,188.99x = 207,260.25 × 81,278.31 - Step 4: Simplify right side
150,188.99x = 16,845,762,850.18 - Step 5: Solve for x
x = 16,845,762,850.18/150,188.99 - Step 6: Final answer
x = 112,163.77
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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.