Finding the Fourth Proportional to 230,537.13, 318,143.66 and 129,935.13
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Solution
The fourth proportional to 230,537.13, 318,143.66 and 129,935.13 is: 179,311.84
Step by Step Solution
- Step 1: Write the proportion equation
230,537.13 : 318,143.66 = 129,935.13 : x - Step 2: Convert to fraction form
230,537.13/318,143.66 = 129,935.13/x - Step 3: Cross multiply
230,537.13x = 318,143.66 × 129,935.13 - Step 4: Simplify right side
230,537.13x = 41,338,037,820.78 - Step 5: Solve for x
x = 41,338,037,820.78/230,537.13 - Step 6: Final answer
x = 179,311.84
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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.