Finding the Fourth Proportional to 377,685.12, 521,139.18 and 226,785.36
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Solution
The fourth proportional to 377,685.12, 521,139.18 and 226,785.36 is: 312,923.99
Step by Step Solution
- Step 1: Write the proportion equation
377,685.12 : 521,139.18 = 226,785.36 : x - Step 2: Convert to fraction form
377,685.12/521,139.18 = 226,785.36/x - Step 3: Cross multiply
377,685.12x = 521,139.18 × 226,785.36 - Step 4: Simplify right side
377,685.12x = 118,186,736,546.41 - Step 5: Solve for x
x = 118,186,736,546.41/377,685.12 - Step 6: Final answer
x = 312,923.99
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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.