Finding the Fourth Proportional to 313,633.20, 432,811.49 and 170,394.42
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Solution
The fourth proportional to 313,633.20, 432,811.49 and 170,394.42 is: 235,143.03
Step by Step Solution
- Step 1: Write the proportion equation
313,633.20 : 432,811.49 = 170,394.42 : x - Step 2: Convert to fraction form
313,633.20/432,811.49 = 170,394.42/x - Step 3: Cross multiply
313,633.20x = 432,811.49 × 170,394.42 - Step 4: Simplify right side
313,633.20x = 73,748,661,955.91 - Step 5: Solve for x
x = 73,748,661,955.91/313,633.20 - Step 6: Final answer
x = 235,143.03
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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.