Finding the Fourth Proportional to 236,734.70, 355,149.36 and 84,891.20
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Solution
The fourth proportional to 236,734.70, 355,149.36 and 84,891.20 is: 127,353.76
Step by Step Solution
- Step 1: Write the proportion equation
236,734.70 : 355,149.36 = 84,891.20 : x - Step 2: Convert to fraction form
236,734.70/355,149.36 = 84,891.20/x - Step 3: Cross multiply
236,734.70x = 355,149.36 × 84,891.20 - Step 4: Simplify right side
236,734.70x = 30,149,055,349.63 - Step 5: Solve for x
x = 30,149,055,349.63/236,734.70 - Step 6: Final answer
x = 127,353.76
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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.