Finding the Fourth Proportional to 229,603.13, 316,856.10 and 126,241.70
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Solution
The fourth proportional to 229,603.13, 316,856.10 and 126,241.70 is: 174,215.62
Step by Step Solution
- Step 1: Write the proportion equation
229,603.13 : 316,856.10 = 126,241.70 : x - Step 2: Convert to fraction form
229,603.13/316,856.10 = 126,241.70/x - Step 3: Cross multiply
229,603.13x = 316,856.10 × 126,241.70 - Step 4: Simplify right side
229,603.13x = 40,000,451,135.09 - Step 5: Solve for x
x = 40,000,451,135.09/229,603.13 - Step 6: Final answer
x = 174,215.62
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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.