Finding the Fourth Proportional to 257,982.71, 386,816.87 and 115,800.37
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Solution
The fourth proportional to 257,982.71, 386,816.87 and 115,800.37 is: 173,630.00
Step by Step Solution
- Step 1: Write the proportion equation
257,982.71 : 386,816.87 = 115,800.37 : x - Step 2: Convert to fraction form
257,982.71/386,816.87 = 115,800.37/x - Step 3: Cross multiply
257,982.71x = 386,816.87 × 115,800.37 - Step 4: Simplify right side
257,982.71x = 44,793,536,668.24 - Step 5: Solve for x
x = 44,793,536,668.24/257,982.71 - Step 6: Final answer
x = 173,630.00
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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.