Finding the Fourth Proportional to 276,933.78, 415,403.96 and 77,242.02
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Solution
The fourth proportional to 276,933.78, 415,403.96 and 77,242.02 is: 115,863.95
Step by Step Solution
- Step 1: Write the proportion equation
276,933.78 : 415,403.96 = 77,242.02 : x - Step 2: Convert to fraction form
276,933.78/415,403.96 = 77,242.02/x - Step 3: Cross multiply
276,933.78x = 415,403.96 × 77,242.02 - Step 4: Simplify right side
276,933.78x = 32,086,640,986.40 - Step 5: Solve for x
x = 32,086,640,986.40/276,933.78 - Step 6: Final answer
x = 115,863.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.