Finding the Fourth Proportional to 338,628.94, 507,995.99 and 113,971.85
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Solution
The fourth proportional to 338,628.94, 507,995.99 and 113,971.85 is: 170,975.47
Step by Step Solution
- Step 1: Write the proportion equation
338,628.94 : 507,995.99 = 113,971.85 : x - Step 2: Convert to fraction form
338,628.94/507,995.99 = 113,971.85/x - Step 3: Cross multiply
338,628.94x = 507,995.99 × 113,971.85 - Step 4: Simplify right side
338,628.94x = 57,897,240,933.03 - Step 5: Solve for x
x = 57,897,240,933.03/338,628.94 - Step 6: Final answer
x = 170,975.47
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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.