Finding the Fourth Proportional to 281,348.48, 388,267.74 and 154,023.68
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Solution
The fourth proportional to 281,348.48, 388,267.74 and 154,023.68 is: 212,556.42
Step by Step Solution
- Step 1: Write the proportion equation
281,348.48 : 388,267.74 = 154,023.68 : x - Step 2: Convert to fraction form
281,348.48/388,267.74 = 154,023.68/x - Step 3: Cross multiply
281,348.48x = 388,267.74 × 154,023.68 - Step 4: Simplify right side
281,348.48x = 59,802,426,140.08 - Step 5: Solve for x
x = 59,802,426,140.08/281,348.48 - Step 6: Final answer
x = 212,556.42
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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.