Finding the Fourth Proportional to 311,990.64, 430,548.30 and 168,751.68
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Solution
The fourth proportional to 311,990.64, 430,548.30 and 168,751.68 is: 232,877.98
Step by Step Solution
- Step 1: Write the proportion equation
311,990.64 : 430,548.30 = 168,751.68 : x - Step 2: Convert to fraction form
311,990.64/430,548.30 = 168,751.68/x - Step 3: Cross multiply
311,990.64x = 430,548.30 × 168,751.68 - Step 4: Simplify right side
311,990.64x = 72,655,748,946.14 - Step 5: Solve for x
x = 72,655,748,946.14/311,990.64 - Step 6: Final answer
x = 232,877.98
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.