Finding the Fourth Proportional to 239,899.08, 331,070.58 and 149,308.68
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Solution
The fourth proportional to 239,899.08, 331,070.58 and 149,308.68 is: 206,052.11
Step by Step Solution
- Step 1: Write the proportion equation
239,899.08 : 331,070.58 = 149,308.68 : x - Step 2: Convert to fraction form
239,899.08/331,070.58 = 149,308.68/x - Step 3: Cross multiply
239,899.08x = 331,070.58 × 149,308.68 - Step 4: Simplify right side
239,899.08x = 49,431,711,286.63 - Step 5: Solve for x
x = 49,431,711,286.63/239,899.08 - Step 6: Final answer
x = 206,052.11
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1.5x scale
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.