Finding the Fourth Proportional to 317,597.14, 438,305.34 and 209,982.16
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Solution
The fourth proportional to 317,597.14, 438,305.34 and 209,982.16 is: 289,789.45
Step by Step Solution
- Step 1: Write the proportion equation
317,597.14 : 438,305.34 = 209,982.16 : x - Step 2: Convert to fraction form
317,597.14/438,305.34 = 209,982.16/x - Step 3: Cross multiply
317,597.14x = 438,305.34 × 209,982.16 - Step 4: Simplify right side
317,597.14x = 92,036,302,032.73 - Step 5: Solve for x
x = 92,036,302,032.73/317,597.14 - Step 6: Final answer
x = 289,789.45
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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.