Finding the Fourth Proportional to 238,708.74, 329,421.33 and 136,734.15
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Solution
The fourth proportional to 238,708.74, 329,421.33 and 136,734.15 is: 188,695.00
Step by Step Solution
- Step 1: Write the proportion equation
238,708.74 : 329,421.33 = 136,734.15 : x - Step 2: Convert to fraction form
238,708.74/329,421.33 = 136,734.15/x - Step 3: Cross multiply
238,708.74x = 329,421.33 × 136,734.15 - Step 4: Simplify right side
238,708.74x = 45,043,145,549.42 - Step 5: Solve for x
x = 45,043,145,549.42/238,708.74 - Step 6: Final answer
x = 188,695.00
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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.