Finding the Fourth Proportional to 454,390.36, 681,708.24 and 138,838.68
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Solution
The fourth proportional to 454,390.36, 681,708.24 and 138,838.68 is: 208,295.51
Step by Step Solution
- Step 1: Write the proportion equation
454,390.36 : 681,708.24 = 138,838.68 : x - Step 2: Convert to fraction form
454,390.36/681,708.24 = 138,838.68/x - Step 3: Cross multiply
454,390.36x = 681,708.24 × 138,838.68 - Step 4: Simplify right side
454,390.36x = 94,647,472,186.72 - Step 5: Solve for x
x = 94,647,472,186.72/454,390.36 - Step 6: Final answer
x = 208,295.51
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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.