Finding the Fourth Proportional to 238,028.76, 328,479.68 and 136,056.41
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Solution
The fourth proportional to 238,028.76, 328,479.68 and 136,056.41 is: 187,757.84
Step by Step Solution
- Step 1: Write the proportion equation
238,028.76 : 328,479.68 = 136,056.41 : x - Step 2: Convert to fraction form
238,028.76/328,479.68 = 136,056.41/x - Step 3: Cross multiply
238,028.76x = 328,479.68 × 136,056.41 - Step 4: Simplify right side
238,028.76x = 44,691,767,180.09 - Step 5: Solve for x
x = 44,691,767,180.09/238,028.76 - Step 6: Final answer
x = 187,757.84
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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.