Finding the Fourth Proportional to 278,313.84, 384,072.84 and 150,989.94
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Solution
The fourth proportional to 278,313.84, 384,072.84 and 150,989.94 is: 208,365.98
Step by Step Solution
- Step 1: Write the proportion equation
278,313.84 : 384,072.84 = 150,989.94 : x - Step 2: Convert to fraction form
278,313.84/384,072.84 = 150,989.94/x - Step 3: Cross multiply
278,313.84x = 384,072.84 × 150,989.94 - Step 4: Simplify right side
278,313.84x = 57,991,135,067.23 - Step 5: Solve for x
x = 57,991,135,067.23/278,313.84 - Step 6: Final answer
x = 208,365.98
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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.