Finding the Fourth Proportional to 326,239.48, 489,549.74 and 136,683.65
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Solution
The fourth proportional to 326,239.48, 489,549.74 and 136,683.65 is: 205,105.30
Step by Step Solution
- Step 1: Write the proportion equation
326,239.48 : 489,549.74 = 136,683.65 : x - Step 2: Convert to fraction form
326,239.48/489,549.74 = 136,683.65/x - Step 3: Cross multiply
326,239.48x = 489,549.74 × 136,683.65 - Step 4: Simplify right side
326,239.48x = 66,913,446,629.05 - Step 5: Solve for x
x = 66,913,446,629.05/326,239.48 - Step 6: Final answer
x = 205,105.30
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.