Finding the Fourth Proportional to 310,840.14, 428,958.69 and 174,874.14
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Solution
The fourth proportional to 310,840.14, 428,958.69 and 174,874.14 is: 241,325.92
Step by Step Solution
- Step 1: Write the proportion equation
310,840.14 : 428,958.69 = 174,874.14 : x - Step 2: Convert to fraction form
310,840.14/428,958.69 = 174,874.14/x - Step 3: Cross multiply
310,840.14x = 428,958.69 × 174,874.14 - Step 4: Simplify right side
310,840.14x = 75,013,782,009.28 - Step 5: Solve for x
x = 75,013,782,009.28/310,840.14 - Step 6: Final answer
x = 241,325.92
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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.