Finding the Fourth Proportional to 208,920.48, 288,315.12 and 124,037.76
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Solution
The fourth proportional to 208,920.48, 288,315.12 and 124,037.76 is: 171,174.99
Step by Step Solution
- Step 1: Write the proportion equation
208,920.48 : 288,315.12 = 124,037.76 : x - Step 2: Convert to fraction form
208,920.48/288,315.12 = 124,037.76/x - Step 3: Cross multiply
208,920.48x = 288,315.12 × 124,037.76 - Step 4: Simplify right side
208,920.48x = 35,761,961,658.93 - Step 5: Solve for x
x = 35,761,961,658.93/208,920.48 - Step 6: Final answer
x = 171,174.99
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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.