Finding the Fourth Proportional to 461,077.81, 636,286.14 and 257,128.97
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Solution
The fourth proportional to 461,077.81, 636,286.14 and 257,128.97 is: 354,837.28
Step by Step Solution
- Step 1: Write the proportion equation
461,077.81 : 636,286.14 = 257,128.97 : x - Step 2: Convert to fraction form
461,077.81/636,286.14 = 257,128.97/x - Step 3: Cross multiply
461,077.81x = 636,286.14 × 257,128.97 - Step 4: Simplify right side
461,077.81x = 163,607,597,345.22 - Step 5: Solve for x
x = 163,607,597,345.22/461,077.81 - Step 6: Final answer
x = 354,837.28
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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.