Finding the Fourth Proportional to 374,328.14, 516,513.12 and 213,186.20
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Solution
The fourth proportional to 374,328.14, 516,513.12 and 213,186.20 is: 294,162.95
Step by Step Solution
- Step 1: Write the proportion equation
374,328.14 : 516,513.12 = 213,186.20 : x - Step 2: Convert to fraction form
374,328.14/516,513.12 = 213,186.20/x - Step 3: Cross multiply
374,328.14x = 516,513.12 × 213,186.20 - Step 4: Simplify right side
374,328.14x = 110,113,469,302.94 - Step 5: Solve for x
x = 110,113,469,302.94/374,328.14 - Step 6: Final answer
x = 294,162.95
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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.