Finding the Fourth Proportional to 151,349.21, 207,349.43 and 145,673.94
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Solution
The fourth proportional to 151,349.21, 207,349.43 and 145,673.94 is: 199,574.28
Step by Step Solution
- Step 1: Write the proportion equation
151,349.21 : 207,349.43 = 145,673.94 : x - Step 2: Convert to fraction form
151,349.21/207,349.43 = 145,673.94/x - Step 3: Cross multiply
151,349.21x = 207,349.43 × 145,673.94 - Step 4: Simplify right side
151,349.21x = 30,205,409,498.31 - Step 5: Solve for x
x = 30,205,409,498.31/151,349.21 - Step 6: Final answer
x = 199,574.28
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.