Finding the Fourth Proportional to 438,434.99, 657,721.28 and 185,716.21
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Solution
The fourth proportional to 438,434.99, 657,721.28 and 185,716.21 is: 278,603.46
Step by Step Solution
- Step 1: Write the proportion equation
438,434.99 : 657,721.28 = 185,716.21 : x - Step 2: Convert to fraction form
438,434.99/657,721.28 = 185,716.21/x - Step 3: Cross multiply
438,434.99x = 657,721.28 × 185,716.21 - Step 4: Simplify right side
438,434.99x = 122,149,503,357.95 - Step 5: Solve for x
x = 122,149,503,357.95/438,434.99 - Step 6: Final answer
x = 278,603.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.