Finding the Fourth Proportional to 245,537.70, 368,306.55 and 212,295.30
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Solution
The fourth proportional to 245,537.70, 368,306.55 and 212,295.30 is: 318,442.95
Step by Step Solution
- Step 1: Write the proportion equation
245,537.70 : 368,306.55 = 212,295.30 : x - Step 2: Convert to fraction form
245,537.70/368,306.55 = 212,295.30/x - Step 3: Cross multiply
245,537.70x = 368,306.55 × 212,295.30 - Step 4: Simplify right side
245,537.70x = 78,189,749,524.22 - Step 5: Solve for x
x = 78,189,749,524.22/245,537.70 - Step 6: Final answer
x = 318,442.95
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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.