Finding the Fourth Proportional to 431,078.68, 646,635.84 and 164,858.68
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Solution
The fourth proportional to 431,078.68, 646,635.84 and 164,858.68 is: 247,294.83
Step by Step Solution
- Step 1: Write the proportion equation
431,078.68 : 646,635.84 = 164,858.68 : x - Step 2: Convert to fraction form
431,078.68/646,635.84 = 164,858.68/x - Step 3: Cross multiply
431,078.68x = 646,635.84 × 164,858.68 - Step 4: Simplify right side
431,078.68x = 106,603,531,023.09 - Step 5: Solve for x
x = 106,603,531,023.09/431,078.68 - Step 6: Final answer
x = 247,294.83
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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.