Finding the Fourth Proportional to 331,620.81, 457,984.14 and 228,523.08
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Solution
The fourth proportional to 331,620.81, 457,984.14 and 228,523.08 is: 315,601.26
Step by Step Solution
- Step 1: Write the proportion equation
331,620.81 : 457,984.14 = 228,523.08 : x - Step 2: Convert to fraction form
331,620.81/457,984.14 = 228,523.08/x - Step 3: Cross multiply
331,620.81x = 457,984.14 × 228,523.08 - Step 4: Simplify right side
331,620.81x = 104,659,946,263.95 - Step 5: Solve for x
x = 104,659,946,263.95/331,620.81 - Step 6: Final answer
x = 315,601.26
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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.