Finding the Fourth Proportional to 285,078.19, 393,381.20 and 170,333.99
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Solution
The fourth proportional to 285,078.19, 393,381.20 and 170,333.99 is: 235,044.95
Step by Step Solution
- Step 1: Write the proportion equation
285,078.19 : 393,381.20 = 170,333.99 : x - Step 2: Convert to fraction form
285,078.19/393,381.20 = 170,333.99/x - Step 3: Cross multiply
285,078.19x = 393,381.20 × 170,333.99 - Step 4: Simplify right side
285,078.19x = 67,006,189,386.99 - Step 5: Solve for x
x = 67,006,189,386.99/285,078.19 - Step 6: Final answer
x = 235,044.95
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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.