Finding the Fourth Proportional to 312,933.24, 431,903.16 and 183,871.68
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Solution
The fourth proportional to 312,933.24, 431,903.16 and 183,871.68 is: 253,775.41
Step by Step Solution
- Step 1: Write the proportion equation
312,933.24 : 431,903.16 = 183,871.68 : x - Step 2: Convert to fraction form
312,933.24/431,903.16 = 183,871.68/x - Step 3: Cross multiply
312,933.24x = 431,903.16 × 183,871.68 - Step 4: Simplify right side
312,933.24x = 79,414,758,707.15 - Step 5: Solve for x
x = 79,414,758,707.15/312,933.24 - Step 6: Final answer
x = 253,775.41
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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.