Finding the Fourth Proportional to 278,471.34, 384,290.82 and 151,146.99
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Solution
The fourth proportional to 278,471.34, 384,290.82 and 151,146.99 is: 208,583.05
Step by Step Solution
- Step 1: Write the proportion equation
278,471.34 : 384,290.82 = 151,146.99 : x - Step 2: Convert to fraction form
278,471.34/384,290.82 = 151,146.99/x - Step 3: Cross multiply
278,471.34x = 384,290.82 × 151,146.99 - Step 4: Simplify right side
278,471.34x = 58,084,400,727.63 - Step 5: Solve for x
x = 58,084,400,727.63/278,471.34 - Step 6: Final answer
x = 208,583.05
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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.