Finding the Fourth Proportional to 318,031.25, 438,864.58 and 174,791.41
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Solution
The fourth proportional to 318,031.25, 438,864.58 and 174,791.41 is: 241,201.95
Step by Step Solution
- Step 1: Write the proportion equation
318,031.25 : 438,864.58 = 174,791.41 : x - Step 2: Convert to fraction form
318,031.25/438,864.58 = 174,791.41/x - Step 3: Cross multiply
318,031.25x = 438,864.58 × 174,791.41 - Step 4: Simplify right side
318,031.25x = 76,709,757,858.59 - Step 5: Solve for x
x = 76,709,757,858.59/318,031.25 - Step 6: Final answer
x = 241,201.95
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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.