Finding the Fourth Proportional to 279,450.19, 385,639.34 and 152,125.48
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Solution
The fourth proportional to 279,450.19, 385,639.34 and 152,125.48 is: 209,932.12
Step by Step Solution
- Step 1: Write the proportion equation
279,450.19 : 385,639.34 = 152,125.48 : x - Step 2: Convert to fraction form
279,450.19/385,639.34 = 152,125.48/x - Step 3: Cross multiply
279,450.19x = 385,639.34 × 152,125.48 - Step 4: Simplify right side
279,450.19x = 58,665,569,704.38 - Step 5: Solve for x
x = 58,665,569,704.38/279,450.19 - Step 6: Final answer
x = 209,932.12
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1.5x scale
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.