Finding the Fourth Proportional to 286,614.70, 395,932.99 and 229,632.42
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Solution
The fourth proportional to 286,614.70, 395,932.99 and 229,632.42 is: 317,216.98
Step by Step Solution
- Step 1: Write the proportion equation
286,614.70 : 395,932.99 = 229,632.42 : x - Step 2: Convert to fraction form
286,614.70/395,932.99 = 229,632.42/x - Step 3: Cross multiply
286,614.70x = 395,932.99 × 229,632.42 - Step 4: Simplify right side
286,614.70x = 90,919,049,335.08 - Step 5: Solve for x
x = 90,919,049,335.08/286,614.70 - Step 6: Final answer
x = 317,216.98
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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.