Finding the Fourth Proportional to 315,752.18, 435,737.49 and 172,512.19
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Solution
The fourth proportional to 315,752.18, 435,737.49 and 172,512.19 is: 238,066.54
Step by Step Solution
- Step 1: Write the proportion equation
315,752.18 : 435,737.49 = 172,512.19 : x - Step 2: Convert to fraction form
315,752.18/435,737.49 = 172,512.19/x - Step 3: Cross multiply
315,752.18x = 435,737.49 × 172,512.19 - Step 4: Simplify right side
315,752.18x = 75,170,028,665.00 - Step 5: Solve for x
x = 75,170,028,665.00/315,752.18 - Step 6: Final answer
x = 238,066.54
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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.