Finding the Fourth Proportional to 386,583.44, 579,642.14 and 173,312.75
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Solution
The fourth proportional to 386,583.44, 579,642.14 and 173,312.75 is: 259,864.66
Step by Step Solution
- Step 1: Write the proportion equation
386,583.44 : 579,642.14 = 173,312.75 : x - Step 2: Convert to fraction form
386,583.44/579,642.14 = 173,312.75/x - Step 3: Cross multiply
386,583.44x = 579,642.14 × 173,312.75 - Step 4: Simplify right side
386,583.44x = 100,459,372,432.72 - Step 5: Solve for x
x = 100,459,372,432.72/386,583.44 - Step 6: Final answer
x = 259,864.66
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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.