Finding the Fourth Proportional to 421,695.55, 581,939.13 and 230,708.49
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Solution
The fourth proportional to 421,695.55, 581,939.13 and 230,708.49 is: 318,377.32
Step by Step Solution
- Step 1: Write the proportion equation
421,695.55 : 581,939.13 = 230,708.49 : x - Step 2: Convert to fraction form
421,695.55/581,939.13 = 230,708.49/x - Step 3: Cross multiply
421,695.55x = 581,939.13 × 230,708.49 - Step 4: Simplify right side
421,695.55x = 134,258,297,954.21 - Step 5: Solve for x
x = 134,258,297,954.21/421,695.55 - Step 6: Final answer
x = 318,377.32
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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.