Finding the Fourth Proportional to 257,236.48, 385,163.52 and 209,656.54
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Solution
The fourth proportional to 257,236.48, 385,163.52 and 209,656.54 is: 313,921.46
Step by Step Solution
- Step 1: Write the proportion equation
257,236.48 : 385,163.52 = 209,656.54 : x - Step 2: Convert to fraction form
257,236.48/385,163.52 = 209,656.54/x - Step 3: Cross multiply
257,236.48x = 385,163.52 × 209,656.54 - Step 4: Simplify right side
257,236.48x = 80,752,050,937.42 - Step 5: Solve for x
x = 80,752,050,937.42/257,236.48 - Step 6: Final answer
x = 313,921.46
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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.