Finding the Fourth Proportional to 159,619.61, 239,406.84 and 47,311.70
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Solution
The fourth proportional to 159,619.61, 239,406.84 and 47,311.70 is: 70,960.85
Step by Step Solution
- Step 1: Write the proportion equation
159,619.61 : 239,406.84 = 47,311.70 : x - Step 2: Convert to fraction form
159,619.61/239,406.84 = 47,311.70/x - Step 3: Cross multiply
159,619.61x = 239,406.84 × 47,311.70 - Step 4: Simplify right side
159,619.61x = 11,326,743,394.99 - Step 5: Solve for x
x = 11,326,743,394.99/159,619.61 - Step 6: Final answer
x = 70,960.85
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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.