Finding the Fourth Proportional to 183,965.76, 253,891.68 and 103,400.64
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Solution
The fourth proportional to 183,965.76, 253,891.68 and 103,400.64 is: 142,703.52
Step by Step Solution
- Step 1: Write the proportion equation
183,965.76 : 253,891.68 = 103,400.64 : x - Step 2: Convert to fraction form
183,965.76/253,891.68 = 103,400.64/x - Step 3: Cross multiply
183,965.76x = 253,891.68 × 103,400.64 - Step 4: Simplify right side
183,965.76x = 26,252,562,202.68 - Step 5: Solve for x
x = 26,252,562,202.68/183,965.76 - Step 6: Final answer
x = 142,703.52
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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.