Finding the Fourth Proportional to 318,684.68, 477,731.76 and 108,175.02
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Solution
The fourth proportional to 318,684.68, 477,731.76 and 108,175.02 is: 162,162.31
Step by Step Solution
- Step 1: Write the proportion equation
318,684.68 : 477,731.76 = 108,175.02 : x - Step 2: Convert to fraction form
318,684.68/477,731.76 = 108,175.02/x - Step 3: Cross multiply
318,684.68x = 477,731.76 × 108,175.02 - Step 4: Simplify right side
318,684.68x = 51,678,642,692.64 - Step 5: Solve for x
x = 51,678,642,692.64/318,684.68 - Step 6: Final answer
x = 162,162.31
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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.