Finding the Fourth Proportional to 399,660.06, 551,776.92 and 256,672.18
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Solution
The fourth proportional to 399,660.06, 551,776.92 and 256,672.18 is: 354,365.62
Step by Step Solution
- Step 1: Write the proportion equation
399,660.06 : 551,776.92 = 256,672.18 : x - Step 2: Convert to fraction form
399,660.06/551,776.92 = 256,672.18/x - Step 3: Cross multiply
399,660.06x = 551,776.92 × 256,672.18 - Step 4: Simplify right side
399,660.06x = 141,625,784,930.09 - Step 5: Solve for x
x = 141,625,784,930.09/399,660.06 - Step 6: Final answer
x = 354,365.62
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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.