Finding the Fourth Proportional to 385,813.12, 532,606.62 and 256,965.88
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Solution
The fourth proportional to 385,813.12, 532,606.62 and 256,965.88 is: 354,735.81
Step by Step Solution
- Step 1: Write the proportion equation
385,813.12 : 532,606.62 = 256,965.88 : x - Step 2: Convert to fraction form
385,813.12/532,606.62 = 256,965.88/x - Step 3: Cross multiply
385,813.12x = 532,606.62 × 256,965.88 - Step 4: Simplify right side
385,813.12x = 136,861,728,802.13 - Step 5: Solve for x
x = 136,861,728,802.13/385,813.12 - Step 6: Final answer
x = 354,735.81
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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.