Finding the Fourth Proportional to 223,797.68, 308,847.25 and 121,829.74
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Solution
The fourth proportional to 223,797.68, 308,847.25 and 121,829.74 is: 168,128.55
Step by Step Solution
- Step 1: Write the proportion equation
223,797.68 : 308,847.25 = 121,829.74 : x - Step 2: Convert to fraction form
223,797.68/308,847.25 = 121,829.74/x - Step 3: Cross multiply
223,797.68x = 308,847.25 × 121,829.74 - Step 4: Simplify right side
223,797.68x = 37,626,780,167.22 - Step 5: Solve for x
x = 37,626,780,167.22/223,797.68 - Step 6: Final answer
x = 168,128.55
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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.