Finding the Fourth Proportional to 386,438.04, 579,646.62 and 173,148.03
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Solution
The fourth proportional to 386,438.04, 579,646.62 and 173,148.03 is: 259,717.37
Step by Step Solution
- Step 1: Write the proportion equation
386,438.04 : 579,646.62 = 173,148.03 : x - Step 2: Convert to fraction form
386,438.04/579,646.62 = 173,148.03/x - Step 3: Cross multiply
386,438.04x = 579,646.62 × 173,148.03 - Step 4: Simplify right side
386,438.04x = 100,364,670,349.16 - Step 5: Solve for x
x = 100,364,670,349.16/386,438.04 - Step 6: Final answer
x = 259,717.37
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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.