Finding the Fourth Proportional to 399,900.87, 551,863.67 and 230,135.13
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Solution
The fourth proportional to 399,900.87, 551,863.67 and 230,135.13 is: 317,586.75
Step by Step Solution
- Step 1: Write the proportion equation
399,900.87 : 551,863.67 = 230,135.13 : x - Step 2: Convert to fraction form
399,900.87/551,863.67 = 230,135.13/x - Step 3: Cross multiply
399,900.87x = 551,863.67 × 230,135.13 - Step 4: Simplify right side
399,900.87x = 127,003,216,287.05 - Step 5: Solve for x
x = 127,003,216,287.05/399,900.87 - Step 6: Final answer
x = 317,586.75
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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.