Finding the Fourth Proportional to 213,881.41, 320,797.50 and 56,122.17
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Solution
The fourth proportional to 213,881.41, 320,797.50 and 56,122.17 is: 84,176.79
Step by Step Solution
- Step 1: Write the proportion equation
213,881.41 : 320,797.50 = 56,122.17 : x - Step 2: Convert to fraction form
213,881.41/320,797.50 = 56,122.17/x - Step 3: Cross multiply
213,881.41x = 320,797.50 × 56,122.17 - Step 4: Simplify right side
213,881.41x = 18,003,850,417.13 - Step 5: Solve for x
x = 18,003,850,417.13/213,881.41 - Step 6: Final answer
x = 84,176.79
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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.