Finding the Fourth Proportional to 386,602.21, 579,670.35 and 173,331.55
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Solution
The fourth proportional to 386,602.21, 579,670.35 and 173,331.55 is: 259,892.88
Step by Step Solution
- Step 1: Write the proportion equation
386,602.21 : 579,670.35 = 173,331.55 : x - Step 2: Convert to fraction form
386,602.21/579,670.35 = 173,331.55/x - Step 3: Cross multiply
386,602.21x = 579,670.35 × 173,331.55 - Step 4: Simplify right side
386,602.21x = 100,475,160,254.54 - Step 5: Solve for x
x = 100,475,160,254.54/386,602.21 - Step 6: Final answer
x = 259,892.88
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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.