Finding the Fourth Proportional to 358,728.16, 495,234.84 and 277,974.40
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Solution
The fourth proportional to 358,728.16, 495,234.84 and 277,974.40 is: 383,751.88
Step by Step Solution
- Step 1: Write the proportion equation
358,728.16 : 495,234.84 = 277,974.40 : x - Step 2: Convert to fraction form
358,728.16/495,234.84 = 277,974.40/x - Step 3: Cross multiply
358,728.16x = 495,234.84 × 277,974.40 - Step 4: Simplify right side
358,728.16x = 137,662,607,508.10 - Step 5: Solve for x
x = 137,662,607,508.10/358,728.16 - Step 6: Final answer
x = 383,751.88
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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.