Finding the Fourth Proportional to 153,651.28, 230,277.12 and 78,707.92
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Solution
The fourth proportional to 153,651.28, 230,277.12 and 78,707.92 is: 117,959.53
Step by Step Solution
- Step 1: Write the proportion equation
153,651.28 : 230,277.12 = 78,707.92 : x - Step 2: Convert to fraction form
153,651.28/230,277.12 = 78,707.92/x - Step 3: Cross multiply
153,651.28x = 230,277.12 × 78,707.92 - Step 4: Simplify right side
153,651.28x = 18,124,633,138.79 - Step 5: Solve for x
x = 18,124,633,138.79/153,651.28 - Step 6: Final answer
x = 117,959.53
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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.