Finding the Fourth Proportional to 268,992.20, 371,209.30 and 148,133.18
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Solution
The fourth proportional to 268,992.20, 371,209.30 and 148,133.18 is: 204,423.82
Step by Step Solution
- Step 1: Write the proportion equation
268,992.20 : 371,209.30 = 148,133.18 : x - Step 2: Convert to fraction form
268,992.20/371,209.30 = 148,133.18/x - Step 3: Cross multiply
268,992.20x = 371,209.30 × 148,133.18 - Step 4: Simplify right side
268,992.20x = 54,988,414,054.57 - Step 5: Solve for x
x = 54,988,414,054.57/268,992.20 - Step 6: Final answer
x = 204,423.82
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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.