Finding the Fourth Proportional to 686,102.10, 1,029,153.15 and 212,835.30
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Solution
The fourth proportional to 686,102.10, 1,029,153.15 and 212,835.30 is: 319,252.95
Step by Step Solution
- Step 1: Write the proportion equation
686,102.10 : 1,029,153.15 = 212,835.30 : x - Step 2: Convert to fraction form
686,102.10/1,029,153.15 = 212,835.30/x - Step 3: Cross multiply
686,102.10x = 1,029,153.15 × 212,835.30 - Step 4: Simplify right side
686,102.10x = 219,040,119,426.20 - Step 5: Solve for x
x = 219,040,119,426.20/686,102.10 - Step 6: Final answer
x = 319,252.95
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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.