Finding the Fourth Proportional to 445,022.16, 667,551.66 and 129,479.06
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Solution
The fourth proportional to 445,022.16, 667,551.66 and 129,479.06 is: 194,223.95
Step by Step Solution
- Step 1: Write the proportion equation
445,022.16 : 667,551.66 = 129,479.06 : x - Step 2: Convert to fraction form
445,022.16/667,551.66 = 129,479.06/x - Step 3: Cross multiply
445,022.16x = 667,551.66 × 129,479.06 - Step 4: Simplify right side
445,022.16x = 86,433,961,438.24 - Step 5: Solve for x
x = 86,433,961,438.24/445,022.16 - Step 6: Final answer
x = 194,223.95
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1.5x scale
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.