Finding the Fourth Proportional to 229,678.36, 316,884.90 and 134,116.12
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Solution
The fourth proportional to 229,678.36, 316,884.90 and 134,116.12 is: 185,038.65
Step by Step Solution
- Step 1: Write the proportion equation
229,678.36 : 316,884.90 = 134,116.12 : x - Step 2: Convert to fraction form
229,678.36/316,884.90 = 134,116.12/x - Step 3: Cross multiply
229,678.36x = 316,884.90 × 134,116.12 - Step 4: Simplify right side
229,678.36x = 42,499,373,274.59 - Step 5: Solve for x
x = 42,499,373,274.59/229,678.36 - Step 6: Final answer
x = 185,038.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.