Finding the Fourth Proportional to 358,215.45, 536,142.09 and 198,045.09
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Solution
The fourth proportional to 358,215.45, 536,142.09 and 198,045.09 is: 296,414.65
Step by Step Solution
- Step 1: Write the proportion equation
358,215.45 : 536,142.09 = 198,045.09 : x - Step 2: Convert to fraction form
358,215.45/536,142.09 = 198,045.09/x - Step 3: Cross multiply
358,215.45x = 536,142.09 × 198,045.09 - Step 4: Simplify right side
358,215.45x = 106,180,308,466.84 - Step 5: Solve for x
x = 106,180,308,466.84/358,215.45 - Step 6: Final answer
x = 296,414.65
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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.