Finding the Fourth Proportional to 319,910.06, 479,863.72 and 130,328.14
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Solution
The fourth proportional to 319,910.06, 479,863.72 and 130,328.14 is: 195,491.65
Step by Step Solution
- Step 1: Write the proportion equation
319,910.06 : 479,863.72 = 130,328.14 : x - Step 2: Convert to fraction form
319,910.06/479,863.72 = 130,328.14/x - Step 3: Cross multiply
319,910.06x = 479,863.72 × 130,328.14 - Step 4: Simplify right side
319,910.06x = 62,539,745,577.53 - Step 5: Solve for x
x = 62,539,745,577.53/319,910.06 - Step 6: Final answer
x = 195,491.65
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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.