Finding the Fourth Proportional to 1,181.68, 1,772.64 and 316
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Solution
The fourth proportional to 1,181.68, 1,772.64 and 316 is: 474.03
Step by Step Solution
- Step 1: Write the proportion equation
1,181.68 : 1,772.64 = 316 : x - Step 2: Convert to fraction form
1,181.68/1,772.64 = 316/x - Step 3: Cross multiply
1,181.68x = 1,772.64 × 316 - Step 4: Simplify right side
1,181.68x = 560,154.24 - Step 5: Solve for x
x = 560,154.24/1,181.68 - Step 6: Final answer
x = 474.03
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