Finding the Fourth Proportional to 319,406.94, 479,112.84 and 141,866.28
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Solution
The fourth proportional to 319,406.94, 479,112.84 and 141,866.28 is: 212,800.50
Step by Step Solution
- Step 1: Write the proportion equation
319,406.94 : 479,112.84 = 141,866.28 : x - Step 2: Convert to fraction form
319,406.94/479,112.84 = 141,866.28/x - Step 3: Cross multiply
319,406.94x = 479,112.84 × 141,866.28 - Step 4: Simplify right side
319,406.94x = 67,969,956,311.04 - Step 5: Solve for x
x = 67,969,956,311.04/319,406.94 - Step 6: Final answer
x = 212,800.50
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1.5x scale
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.