Finding the Fourth Proportional to 288,102.80, 431,603.40 and 154,938.80
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Solution
The fourth proportional to 288,102.80, 431,603.40 and 154,938.80 is: 232,111.99
Step by Step Solution
- Step 1: Write the proportion equation
288,102.80 : 431,603.40 = 154,938.80 : x - Step 2: Convert to fraction form
288,102.80/431,603.40 = 154,938.80/x - Step 3: Cross multiply
288,102.80x = 431,603.40 × 154,938.80 - Step 4: Simplify right side
288,102.80x = 66,872,112,871.92 - Step 5: Solve for x
x = 66,872,112,871.92/288,102.80 - Step 6: Final answer
x = 232,111.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.