Finding the Fourth Proportional to 210,519.40, 315,800.35 and 68,358.73
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Solution
The fourth proportional to 210,519.40, 315,800.35 and 68,358.73 is: 102,544.99
Step by Step Solution
- Step 1: Write the proportion equation
210,519.40 : 315,800.35 = 68,358.73 : x - Step 2: Convert to fraction form
210,519.40/315,800.35 = 68,358.73/x - Step 3: Cross multiply
210,519.40x = 315,800.35 × 68,358.73 - Step 4: Simplify right side
210,519.40x = 21,587,710,240.95 - Step 5: Solve for x
x = 21,587,710,240.95/210,519.40 - Step 6: Final answer
x = 102,544.99
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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.