Finding the Fourth Proportional to 210,571.11, 290,587.91 and 118,683.09
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Solution
The fourth proportional to 210,571.11, 290,587.91 and 118,683.09 is: 163,782.54
Step by Step Solution
- Step 1: Write the proportion equation
210,571.11 : 290,587.91 = 118,683.09 : x - Step 2: Convert to fraction form
210,571.11/290,587.91 = 118,683.09/x - Step 3: Cross multiply
210,571.11x = 290,587.91 × 118,683.09 - Step 4: Simplify right side
210,571.11x = 34,487,870,482.03 - Step 5: Solve for x
x = 34,487,870,482.03/210,571.11 - Step 6: Final answer
x = 163,782.54
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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.