Finding the Fourth Proportional to 262,522.48, 393,880.58 and 212,386.19
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Solution
The fourth proportional to 262,522.48, 393,880.58 and 212,386.19 is: 318,657.65
Step by Step Solution
- Step 1: Write the proportion equation
262,522.48 : 393,880.58 = 212,386.19 : x - Step 2: Convert to fraction form
262,522.48/393,880.58 = 212,386.19/x - Step 3: Cross multiply
262,522.48x = 393,880.58 × 212,386.19 - Step 4: Simplify right side
262,522.48x = 83,654,795,701.19 - Step 5: Solve for x
x = 83,654,795,701.19/262,522.48 - Step 6: Final answer
x = 318,657.65
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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.