Finding the Fourth Proportional to 318,135.73, 439,035.69 and 174,899.38
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Solution
The fourth proportional to 318,135.73, 439,035.69 and 174,899.38 is: 241,365.75
Step by Step Solution
- Step 1: Write the proportion equation
318,135.73 : 439,035.69 = 174,899.38 : x - Step 2: Convert to fraction form
318,135.73/439,035.69 = 174,899.38/x - Step 3: Cross multiply
318,135.73x = 439,035.69 × 174,899.38 - Step 4: Simplify right side
318,135.73x = 76,787,069,978.87 - Step 5: Solve for x
x = 76,787,069,978.87/318,135.73 - Step 6: Final answer
x = 241,365.75
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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.