Finding the Fourth Proportional to 225,917.68, 312,090.87 and 180,536.26
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Solution
The fourth proportional to 225,917.68, 312,090.87 and 180,536.26 is: 249,399.33
Step by Step Solution
- Step 1: Write the proportion equation
225,917.68 : 312,090.87 = 180,536.26 : x - Step 2: Convert to fraction form
225,917.68/312,090.87 = 180,536.26/x - Step 3: Cross multiply
225,917.68x = 312,090.87 × 180,536.26 - Step 4: Simplify right side
225,917.68x = 56,343,718,449.95 - Step 5: Solve for x
x = 56,343,718,449.95/225,917.68 - Step 6: Final answer
x = 249,399.33
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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.