Finding the Fourth Proportional to 286,148.24, 394,990.58 and 245,699.54
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Solution
The fourth proportional to 286,148.24, 394,990.58 and 245,699.54 is: 339,156.39
Step by Step Solution
- Step 1: Write the proportion equation
286,148.24 : 394,990.58 = 245,699.54 : x - Step 2: Convert to fraction form
286,148.24/394,990.58 = 245,699.54/x - Step 3: Cross multiply
286,148.24x = 394,990.58 × 245,699.54 - Step 4: Simplify right side
286,148.24x = 97,049,002,449.63 - Step 5: Solve for x
x = 97,049,002,449.63/286,148.24 - Step 6: Final answer
x = 339,156.39
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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.