Finding the Fourth Proportional to 358,728.18, 538,168.17 and 118,828.50
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Solution
The fourth proportional to 358,728.18, 538,168.17 and 118,828.50 is: 178,267.89
Step by Step Solution
- Step 1: Write the proportion equation
358,728.18 : 538,168.17 = 118,828.50 : x - Step 2: Convert to fraction form
358,728.18/538,168.17 = 118,828.50/x - Step 3: Cross multiply
358,728.18x = 538,168.17 × 118,828.50 - Step 4: Simplify right side
358,728.18x = 63,949,716,388.85 - Step 5: Solve for x
x = 63,949,716,388.85/358,728.18 - Step 6: Final answer
x = 178,267.89
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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.