Finding the Fourth Proportional to 278,453.36, 384,261.68 and 151,125.68
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Solution
The fourth proportional to 278,453.36, 384,261.68 and 151,125.68 is: 208,551.29
Step by Step Solution
- Step 1: Write the proportion equation
278,453.36 : 384,261.68 = 151,125.68 : x - Step 2: Convert to fraction form
278,453.36/384,261.68 = 151,125.68/x - Step 3: Cross multiply
278,453.36x = 384,261.68 × 151,125.68 - Step 4: Simplify right side
278,453.36x = 58,071,807,687.94 - Step 5: Solve for x
x = 58,071,807,687.94/278,453.36 - Step 6: Final answer
x = 208,551.29
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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.