Finding the Fourth Proportional to 256,986.07, 354,644.98 and 140,697.60
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Solution
The fourth proportional to 256,986.07, 354,644.98 and 140,697.60 is: 194,164.99
Step by Step Solution
- Step 1: Write the proportion equation
256,986.07 : 354,644.98 = 140,697.60 : x - Step 2: Convert to fraction form
256,986.07/354,644.98 = 140,697.60/x - Step 3: Cross multiply
256,986.07x = 354,644.98 × 140,697.60 - Step 4: Simplify right side
256,986.07x = 49,897,697,538.05 - Step 5: Solve for x
x = 49,897,697,538.05/256,986.07 - Step 6: Final answer
x = 194,164.99
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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.