Finding the Fourth Proportional to 494,815.80, 742,223.70 and 214,879.80
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Solution
The fourth proportional to 494,815.80, 742,223.70 and 214,879.80 is: 322,319.70
Step by Step Solution
- Step 1: Write the proportion equation
494,815.80 : 742,223.70 = 214,879.80 : x - Step 2: Convert to fraction form
494,815.80/742,223.70 = 214,879.80/x - Step 3: Cross multiply
494,815.80x = 742,223.70 × 214,879.80 - Step 4: Simplify right side
494,815.80x = 159,488,880,211.26 - Step 5: Solve for x
x = 159,488,880,211.26/494,815.80 - Step 6: Final answer
x = 322,319.70
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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.