Finding the Fourth Proportional to 319,539.44, 479,470.08 and 212,995.28
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Solution
The fourth proportional to 319,539.44, 479,470.08 and 212,995.28 is: 319,600.18
Step by Step Solution
- Step 1: Write the proportion equation
319,539.44 : 479,470.08 = 212,995.28 : x - Step 2: Convert to fraction form
319,539.44/479,470.08 = 212,995.28/x - Step 3: Cross multiply
319,539.44x = 479,470.08 × 212,995.28 - Step 4: Simplify right side
319,539.44x = 102,124,863,941.22 - Step 5: Solve for x
x = 102,124,863,941.22/319,539.44 - Step 6: Final answer
x = 319,600.18
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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.