Finding the Fourth Proportional to 281,325.42, 388,235.97 and 154,000.71
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Solution
The fourth proportional to 281,325.42, 388,235.97 and 154,000.71 is: 212,524.75
Step by Step Solution
- Step 1: Write the proportion equation
281,325.42 : 388,235.97 = 154,000.71 : x - Step 2: Convert to fraction form
281,325.42/388,235.97 = 154,000.71/x - Step 3: Cross multiply
281,325.42x = 388,235.97 × 154,000.71 - Step 4: Simplify right side
281,325.42x = 59,788,615,027.54 - Step 5: Solve for x
x = 59,788,615,027.54/281,325.42 - Step 6: Final answer
x = 212,524.75
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1.5x scale
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.