Finding the Fourth Proportional to 276,321.66, 381,321.99 and 157,089.66
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Solution
The fourth proportional to 276,321.66, 381,321.99 and 157,089.66 is: 216,782.65
Step by Step Solution
- Step 1: Write the proportion equation
276,321.66 : 381,321.99 = 157,089.66 : x - Step 2: Convert to fraction form
276,321.66/381,321.99 = 157,089.66/x - Step 3: Cross multiply
276,321.66x = 381,321.99 × 157,089.66 - Step 4: Simplify right side
276,321.66x = 59,901,741,759.62 - Step 5: Solve for x
x = 59,901,741,759.62/276,321.66 - Step 6: Final answer
x = 216,782.65
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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.