Finding the Fourth Proportional to 267,963.64, 401,639.69 and 107,937.09
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Solution
The fourth proportional to 267,963.64, 401,639.69 and 107,937.09 is: 161,782.47
Step by Step Solution
- Step 1: Write the proportion equation
267,963.64 : 401,639.69 = 107,937.09 : x - Step 2: Convert to fraction form
267,963.64/401,639.69 = 107,937.09/x - Step 3: Cross multiply
267,963.64x = 401,639.69 × 107,937.09 - Step 4: Simplify right side
267,963.64x = 43,351,818,827.42 - Step 5: Solve for x
x = 43,351,818,827.42/267,963.64 - Step 6: Final answer
x = 161,782.47
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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.