Finding the Fourth Proportional to 269,513.70, 403,930.35 and 136,430.70
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Solution
The fourth proportional to 269,513.70, 403,930.35 and 136,430.70 is: 204,473.84
Step by Step Solution
- Step 1: Write the proportion equation
269,513.70 : 403,930.35 = 136,430.70 : x - Step 2: Convert to fraction form
269,513.70/403,930.35 = 136,430.70/x - Step 3: Cross multiply
269,513.70x = 403,930.35 × 136,430.70 - Step 4: Simplify right side
269,513.70x = 55,108,500,401.75 - Step 5: Solve for x
x = 55,108,500,401.75/269,513.70 - Step 6: Final answer
x = 204,473.84
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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.