Finding the Fourth Proportional to 188,516.44, 260,153.58 and 103,639.06
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Solution
The fourth proportional to 188,516.44, 260,153.58 and 103,639.06 is: 143,022.39
Step by Step Solution
- Step 1: Write the proportion equation
188,516.44 : 260,153.58 = 103,639.06 : x - Step 2: Convert to fraction form
188,516.44/260,153.58 = 103,639.06/x - Step 3: Cross multiply
188,516.44x = 260,153.58 × 103,639.06 - Step 4: Simplify right side
188,516.44x = 26,962,072,486.83 - Step 5: Solve for x
x = 26,962,072,486.83/188,516.44 - Step 6: Final answer
x = 143,022.39
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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.