Finding the Fourth Proportional to 281,760.12, 388,868.81 and 174,364.74
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Solution
The fourth proportional to 281,760.12, 388,868.81 and 174,364.74 is: 240,648.00
Step by Step Solution
- Step 1: Write the proportion equation
281,760.12 : 388,868.81 = 174,364.74 : x - Step 2: Convert to fraction form
281,760.12/388,868.81 = 174,364.74/x - Step 3: Cross multiply
281,760.12x = 388,868.81 × 174,364.74 - Step 4: Simplify right side
281,760.12x = 67,805,008,949.76 - Step 5: Solve for x
x = 67,805,008,949.76/281,760.12 - Step 6: Final answer
x = 240,648.00
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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.