Finding the Fourth Proportional to 223,137.88, 307,930.26 and 121,162.84
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Solution
The fourth proportional to 223,137.88, 307,930.26 and 121,162.84 is: 167,204.71
Step by Step Solution
- Step 1: Write the proportion equation
223,137.88 : 307,930.26 = 121,162.84 : x - Step 2: Convert to fraction form
223,137.88/307,930.26 = 121,162.84/x - Step 3: Cross multiply
223,137.88x = 307,930.26 × 121,162.84 - Step 4: Simplify right side
223,137.88x = 37,309,704,823.54 - Step 5: Solve for x
x = 37,309,704,823.54/223,137.88 - Step 6: Final answer
x = 167,204.71
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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.