Finding the Fourth Proportional to 285,839.08, 394,481.58 and 158,555.80
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Solution
The fourth proportional to 285,839.08, 394,481.58 and 158,555.80 is: 218,820.12
Step by Step Solution
- Step 1: Write the proportion equation
285,839.08 : 394,481.58 = 158,555.80 : x - Step 2: Convert to fraction form
285,839.08/394,481.58 = 158,555.80/x - Step 3: Cross multiply
285,839.08x = 394,481.58 × 158,555.80 - Step 4: Simplify right side
285,839.08x = 62,547,342,502.16 - Step 5: Solve for x
x = 62,547,342,502.16/285,839.08 - Step 6: Final answer
x = 218,820.12
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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.