Finding the Fourth Proportional to 216,458.73, 298,719.41 and 120,965.63
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Solution
The fourth proportional to 216,458.73, 298,719.41 and 120,965.63 is: 166,936.12
Step by Step Solution
- Step 1: Write the proportion equation
216,458.73 : 298,719.41 = 120,965.63 : x - Step 2: Convert to fraction form
216,458.73/298,719.41 = 120,965.63/x - Step 3: Cross multiply
216,458.73x = 298,719.41 × 120,965.63 - Step 4: Simplify right side
216,458.73x = 36,134,779,525.45 - Step 5: Solve for x
x = 36,134,779,525.45/216,458.73 - Step 6: Final answer
x = 166,936.12
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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.