Finding the Fourth Proportional to 258,107.05, 356,176.16 and 143,393.74
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Solution
The fourth proportional to 258,107.05, 356,176.16 and 143,393.74 is: 197,876.92
Step by Step Solution
- Step 1: Write the proportion equation
258,107.05 : 356,176.16 = 143,393.74 : x - Step 2: Convert to fraction form
258,107.05/356,176.16 = 143,393.74/x - Step 3: Cross multiply
258,107.05x = 356,176.16 × 143,393.74 - Step 4: Simplify right side
258,107.05x = 51,073,429,183.39 - Step 5: Solve for x
x = 51,073,429,183.39/258,107.05 - Step 6: Final answer
x = 197,876.92
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1.5x scale
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.