Finding the Fourth Proportional to 217,117.87, 299,536.45 and 135,398.05
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Solution
The fourth proportional to 217,117.87, 299,536.45 and 135,398.05 is: 186,795.54
Step by Step Solution
- Step 1: Write the proportion equation
217,117.87 : 299,536.45 = 135,398.05 : x - Step 2: Convert to fraction form
217,117.87/299,536.45 = 135,398.05/x - Step 3: Cross multiply
217,117.87x = 299,536.45 × 135,398.05 - Step 4: Simplify right side
217,117.87x = 40,556,649,059.25 - Step 5: Solve for x
x = 40,556,649,059.25/217,117.87 - Step 6: Final answer
x = 186,795.54
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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.