Finding the Fourth Proportional to 268,628.07, 370,707.61 and 147,778.55
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Solution
The fourth proportional to 268,628.07, 370,707.61 and 147,778.55 is: 203,934.88
Step by Step Solution
- Step 1: Write the proportion equation
268,628.07 : 370,707.61 = 147,778.55 : x - Step 2: Convert to fraction form
268,628.07/370,707.61 = 147,778.55/x - Step 3: Cross multiply
268,628.07x = 370,707.61 × 147,778.55 - Step 4: Simplify right side
268,628.07x = 54,782,633,079.77 - Step 5: Solve for x
x = 54,782,633,079.77/268,628.07 - Step 6: Final answer
x = 203,934.88
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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.