Finding the Fourth Proportional to 342,119.99, 513,201.09 and 131,758.13
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Solution
The fourth proportional to 342,119.99, 513,201.09 and 131,758.13 is: 197,645.32
Step by Step Solution
- Step 1: Write the proportion equation
342,119.99 : 513,201.09 = 131,758.13 : x - Step 2: Convert to fraction form
342,119.99/513,201.09 = 131,758.13/x - Step 3: Cross multiply
342,119.99x = 513,201.09 × 131,758.13 - Step 4: Simplify right side
342,119.99x = 67,618,415,932.36 - Step 5: Solve for x
x = 67,618,415,932.36/342,119.99 - Step 6: Final answer
x = 197,645.32
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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.