Finding the Fourth Proportional to 178,088.76, 267,263.82 and 143,446.68
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Solution
The fourth proportional to 178,088.76, 267,263.82 and 143,446.68 is: 215,275.28
Step by Step Solution
- Step 1: Write the proportion equation
178,088.76 : 267,263.82 = 143,446.68 : x - Step 2: Convert to fraction form
178,088.76/267,263.82 = 143,446.68/x - Step 3: Cross multiply
178,088.76x = 267,263.82 × 143,446.68 - Step 4: Simplify right side
178,088.76x = 38,338,107,663.12 - Step 5: Solve for x
x = 38,338,107,663.12/178,088.76 - Step 6: Final answer
x = 215,275.28
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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.