Finding the Fourth Proportional to 277,963.55, 416,953.43 and 100,439.09
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Solution
The fourth proportional to 277,963.55, 416,953.43 and 100,439.09 is: 150,661.56
Step by Step Solution
- Step 1: Write the proportion equation
277,963.55 : 416,953.43 = 100,439.09 : x - Step 2: Convert to fraction form
277,963.55/416,953.43 = 100,439.09/x - Step 3: Cross multiply
277,963.55x = 416,953.43 × 100,439.09 - Step 4: Simplify right side
277,963.55x = 41,878,422,579.38 - Step 5: Solve for x
x = 41,878,422,579.38/277,963.55 - Step 6: Final answer
x = 150,661.56
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1.5x scale
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.