Finding the Fourth Proportional to 257,658.24, 386,622.48 and 187,163.28
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Solution
The fourth proportional to 257,658.24, 386,622.48 and 187,163.28 is: 280,843.07
Step by Step Solution
- Step 1: Write the proportion equation
257,658.24 : 386,622.48 = 187,163.28 : x - Step 2: Convert to fraction form
257,658.24/386,622.48 = 187,163.28/x - Step 3: Cross multiply
257,658.24x = 386,622.48 × 187,163.28 - Step 4: Simplify right side
257,658.24x = 72,361,531,478.53 - Step 5: Solve for x
x = 72,361,531,478.53/257,658.24 - Step 6: Final answer
x = 280,843.07
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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.