Finding the Fourth Proportional to 312,135.48, 430,745.58 and 168,898.06
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Solution
The fourth proportional to 312,135.48, 430,745.58 and 168,898.06 is: 233,078.57
Step by Step Solution
- Step 1: Write the proportion equation
312,135.48 : 430,745.58 = 168,898.06 : x - Step 2: Convert to fraction form
312,135.48/430,745.58 = 168,898.06/x - Step 3: Cross multiply
312,135.48x = 430,745.58 × 168,898.06 - Step 4: Simplify right side
312,135.48x = 72,752,092,815.57 - Step 5: Solve for x
x = 72,752,092,815.57/312,135.48 - Step 6: Final answer
x = 233,078.57
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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.