Finding the Fourth Proportional to 313,486.96, 432,615.18 and 170,249.80
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Solution
The fourth proportional to 313,486.96, 432,615.18 and 170,249.80 is: 234,946.45
Step by Step Solution
- Step 1: Write the proportion equation
313,486.96 : 432,615.18 = 170,249.80 : x - Step 2: Convert to fraction form
313,486.96/432,615.18 = 170,249.80/x - Step 3: Cross multiply
313,486.96x = 432,615.18 × 170,249.80 - Step 4: Simplify right side
313,486.96x = 73,652,647,871.96 - Step 5: Solve for x
x = 73,652,647,871.96/313,486.96 - Step 6: Final answer
x = 234,946.45
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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.