Finding the Fourth Proportional to 336,139.70, 504,209.55 and 86,821.70
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Solution
The fourth proportional to 336,139.70, 504,209.55 and 86,821.70 is: 130,232.55
Step by Step Solution
- Step 1: Write the proportion equation
336,139.70 : 504,209.55 = 86,821.70 : x - Step 2: Convert to fraction form
336,139.70/504,209.55 = 86,821.70/x - Step 3: Cross multiply
336,139.70x = 504,209.55 × 86,821.70 - Step 4: Simplify right side
336,139.70x = 43,776,330,287.24 - Step 5: Solve for x
x = 43,776,330,287.24/336,139.70 - Step 6: Final answer
x = 130,232.55
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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.