Finding the Fourth Proportional to 261,862.92, 392,966.58 and 143,617.26
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Solution
The fourth proportional to 261,862.92, 392,966.58 and 143,617.26 is: 215,520.33
Step by Step Solution
- Step 1: Write the proportion equation
261,862.92 : 392,966.58 = 143,617.26 : x - Step 2: Convert to fraction form
261,862.92/392,966.58 = 143,617.26/x - Step 3: Cross multiply
261,862.92x = 392,966.58 × 143,617.26 - Step 4: Simplify right side
261,862.92x = 56,436,783,491.17 - Step 5: Solve for x
x = 56,436,783,491.17/261,862.92 - Step 6: Final answer
x = 215,520.33
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1.5x scale
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.