Finding the Fourth Proportional to 258,458.04, 356,665.68 and 145,288.08
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Solution
The fourth proportional to 258,458.04, 356,665.68 and 145,288.08 is: 200,493.94
Step by Step Solution
- Step 1: Write the proportion equation
258,458.04 : 356,665.68 = 145,288.08 : x - Step 2: Convert to fraction form
258,458.04/356,665.68 = 145,288.08/x - Step 3: Cross multiply
258,458.04x = 356,665.68 × 145,288.08 - Step 4: Simplify right side
258,458.04x = 51,819,271,849.09 - Step 5: Solve for x
x = 51,819,271,849.09/258,458.04 - Step 6: Final answer
x = 200,493.94
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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.