Finding the Fourth Proportional to 203,432.80, 304,938.60 and 91,166.80
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Solution
The fourth proportional to 203,432.80, 304,938.60 and 91,166.80 is: 136,655.82
Step by Step Solution
- Step 1: Write the proportion equation
203,432.80 : 304,938.60 = 91,166.80 : x - Step 2: Convert to fraction form
203,432.80/304,938.60 = 91,166.80/x - Step 3: Cross multiply
203,432.80x = 304,938.60 × 91,166.80 - Step 4: Simplify right side
203,432.80x = 27,800,276,358.48 - Step 5: Solve for x
x = 27,800,276,358.48/203,432.80 - Step 6: Final answer
x = 136,655.82
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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.