Finding the Fourth Proportional to 316,822.68, 436,936.14 and 195,944.76
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Solution
The fourth proportional to 316,822.68, 436,936.14 and 195,944.76 is: 270,231.12
Step by Step Solution
- Step 1: Write the proportion equation
316,822.68 : 436,936.14 = 195,944.76 : x - Step 2: Convert to fraction form
316,822.68/436,936.14 = 195,944.76/x - Step 3: Cross multiply
316,822.68x = 436,936.14 × 195,944.76 - Step 4: Simplify right side
316,822.68x = 85,615,347,087.63 - Step 5: Solve for x
x = 85,615,347,087.63/316,822.68 - Step 6: Final answer
x = 270,231.12
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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.