Finding the Fourth Proportional to 319,823.75, 441,395.66 and 185,687.75
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Solution
The fourth proportional to 319,823.75, 441,395.66 and 185,687.75 is: 256,271.67
Step by Step Solution
- Step 1: Write the proportion equation
319,823.75 : 441,395.66 = 185,687.75 : x - Step 2: Convert to fraction form
319,823.75/441,395.66 = 185,687.75/x - Step 3: Cross multiply
319,823.75x = 441,395.66 × 185,687.75 - Step 4: Simplify right side
319,823.75x = 81,961,766,965.17 - Step 5: Solve for x
x = 81,961,766,965.17/319,823.75 - Step 6: Final answer
x = 256,271.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.