Finding the Fourth Proportional to 221,110.13, 331,004.17 and 135,451.15
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Solution
The fourth proportional to 221,110.13, 331,004.17 and 135,451.15 is: 202,771.78
Step by Step Solution
- Step 1: Write the proportion equation
221,110.13 : 331,004.17 = 135,451.15 : x - Step 2: Convert to fraction form
221,110.13/331,004.17 = 135,451.15/x - Step 3: Cross multiply
221,110.13x = 331,004.17 × 135,451.15 - Step 4: Simplify right side
221,110.13x = 44,834,894,823.10 - Step 5: Solve for x
x = 44,834,894,823.10/221,110.13 - Step 6: Final answer
x = 202,771.78
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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.