Finding the Fourth Proportional to 372,668.20, 513,302.34 and 286,462.12
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Solution
The fourth proportional to 372,668.20, 513,302.34 and 286,462.12 is: 394,564.59
Step by Step Solution
- Step 1: Write the proportion equation
372,668.20 : 513,302.34 = 286,462.12 : x - Step 2: Convert to fraction form
372,668.20/513,302.34 = 286,462.12/x - Step 3: Cross multiply
372,668.20x = 513,302.34 × 286,462.12 - Step 4: Simplify right side
372,668.20x = 147,041,676,517.36 - Step 5: Solve for x
x = 147,041,676,517.36/372,668.20 - Step 6: Final answer
x = 394,564.59
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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.