Finding the Fourth Proportional to 212,252.38, 317,977.21 and 125,439.21
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Solution
The fourth proportional to 212,252.38, 317,977.21 and 125,439.21 is: 187,921.61
Step by Step Solution
- Step 1: Write the proportion equation
212,252.38 : 317,977.21 = 125,439.21 : x - Step 2: Convert to fraction form
212,252.38/317,977.21 = 125,439.21/x - Step 3: Cross multiply
212,252.38x = 317,977.21 × 125,439.21 - Step 4: Simplify right side
212,252.38x = 39,886,810,020.40 - Step 5: Solve for x
x = 39,886,810,020.40/212,252.38 - Step 6: Final answer
x = 187,921.61
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1.5x scale
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.