Finding the Fourth Proportional to 299,138.09, 448,332.93 and 149,420.17
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Solution
The fourth proportional to 299,138.09, 448,332.93 and 149,420.17 is: 223,943.34
Step by Step Solution
- Step 1: Write the proportion equation
299,138.09 : 448,332.93 = 149,420.17 : x - Step 2: Convert to fraction form
299,138.09/448,332.93 = 149,420.17/x - Step 3: Cross multiply
299,138.09x = 448,332.93 × 149,420.17 - Step 4: Simplify right side
299,138.09x = 66,989,981,496.37 - Step 5: Solve for x
x = 66,989,981,496.37/299,138.09 - Step 6: Final answer
x = 223,943.34
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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.