Finding the Fourth Proportional to 324,112.69, 486,220.88 and 137,125.81
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Solution
The fourth proportional to 324,112.69, 486,220.88 and 137,125.81 is: 205,710.65
Step by Step Solution
- Step 1: Write the proportion equation
324,112.69 : 486,220.88 = 137,125.81 : x - Step 2: Convert to fraction form
324,112.69/486,220.88 = 137,125.81/x - Step 3: Cross multiply
324,112.69x = 486,220.88 × 137,125.81 - Step 4: Simplify right side
324,112.69x = 66,673,432,008.91 - Step 5: Solve for x
x = 66,673,432,008.91/324,112.69 - Step 6: Final answer
x = 205,710.65
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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.