Finding the Fourth Proportional to 285,708.70, 428,634.40 and 201,633.07
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Solution
The fourth proportional to 285,708.70, 428,634.40 and 201,633.07 is: 302,499.96
Step by Step Solution
- Step 1: Write the proportion equation
285,708.70 : 428,634.40 = 201,633.07 : x - Step 2: Convert to fraction form
285,708.70/428,634.40 = 201,633.07/x - Step 3: Cross multiply
285,708.70x = 428,634.40 × 201,633.07 - Step 4: Simplify right side
285,708.70x = 86,426,869,585.69 - Step 5: Solve for x
x = 86,426,869,585.69/285,708.70 - Step 6: Final answer
x = 302,499.96
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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.