Finding the Fourth Proportional to 218,938.95, 302,135.27 and 123,445.08
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Solution
The fourth proportional to 218,938.95, 302,135.27 and 123,445.08 is: 170,353.94
Step by Step Solution
- Step 1: Write the proportion equation
218,938.95 : 302,135.27 = 123,445.08 : x - Step 2: Convert to fraction form
218,938.95/302,135.27 = 123,445.08/x - Step 3: Cross multiply
218,938.95x = 302,135.27 × 123,445.08 - Step 4: Simplify right side
218,938.95x = 37,297,111,958.75 - Step 5: Solve for x
x = 37,297,111,958.75/218,938.95 - Step 6: Final answer
x = 170,353.94
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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.