Finding the Fourth Proportional to 375,689.49, 518,450.17 and 203,611.63
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Solution
The fourth proportional to 375,689.49, 518,450.17 and 203,611.63 is: 280,983.33
Step by Step Solution
- Step 1: Write the proportion equation
375,689.49 : 518,450.17 = 203,611.63 : x - Step 2: Convert to fraction form
375,689.49/518,450.17 = 203,611.63/x - Step 3: Cross multiply
375,689.49x = 518,450.17 × 203,611.63 - Step 4: Simplify right side
375,689.49x = 105,562,486,059.52 - Step 5: Solve for x
x = 105,562,486,059.52/375,689.49 - Step 6: Final answer
x = 280,983.33
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1.5x scale
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.