Finding the Fourth Proportional to 230,536.13, 318,142.28 and 129,934.13
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Solution
The fourth proportional to 230,536.13, 318,142.28 and 129,934.13 is: 179,310.46
Step by Step Solution
- Step 1: Write the proportion equation
230,536.13 : 318,142.28 = 129,934.13 : x - Step 2: Convert to fraction form
230,536.13/318,142.28 = 129,934.13/x - Step 3: Cross multiply
230,536.13x = 318,142.28 × 129,934.13 - Step 4: Simplify right side
230,536.13x = 41,337,539,102.14 - Step 5: Solve for x
x = 41,337,539,102.14/230,536.13 - Step 6: Final answer
x = 179,310.46
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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.