Finding the Fourth Proportional to 285,753.68, 393,440.28 and 217,551.68
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Solution
The fourth proportional to 285,753.68, 393,440.28 and 217,551.68 is: 299,536.28
Step by Step Solution
- Step 1: Write the proportion equation
285,753.68 : 393,440.28 = 217,551.68 : x - Step 2: Convert to fraction form
285,753.68/393,440.28 = 217,551.68/x - Step 3: Cross multiply
285,753.68x = 393,440.28 × 217,551.68 - Step 4: Simplify right side
285,753.68x = 85,593,593,893.67 - Step 5: Solve for x
x = 85,593,593,893.67/285,753.68 - Step 6: Final answer
x = 299,536.28
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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.