Finding the Fourth Proportional to 509,958.99, 764,965.76 and 130,883.00
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Solution
The fourth proportional to 509,958.99, 764,965.76 and 130,883.00 is: 196,331.49
Step by Step Solution
- Step 1: Write the proportion equation
509,958.99 : 764,965.76 = 130,883.00 : x - Step 2: Convert to fraction form
509,958.99/764,965.76 = 130,883.00/x - Step 3: Cross multiply
509,958.99x = 764,965.76 × 130,883.00 - Step 4: Simplify right side
509,958.99x = 100,121,009,086.84 - Step 5: Solve for x
x = 100,121,009,086.84/509,958.99 - Step 6: Final answer
x = 196,331.49
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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.