Finding the Fourth Proportional to 178,701.60, 267,955.20 and 73,531.20
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Solution
The fourth proportional to 178,701.60, 267,955.20 and 73,531.20 is: 110,256.80
Step by Step Solution
- Step 1: Write the proportion equation
178,701.60 : 267,955.20 = 73,531.20 : x - Step 2: Convert to fraction form
178,701.60/267,955.20 = 73,531.20/x - Step 3: Cross multiply
178,701.60x = 267,955.20 × 73,531.20 - Step 4: Simplify right side
178,701.60x = 19,703,067,402.24 - Step 5: Solve for x
x = 19,703,067,402.24/178,701.60 - Step 6: Final answer
x = 110,256.80
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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.