Finding the Fourth Proportional to 391,733.64, 587,642.58 and 167,117.81
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Solution
The fourth proportional to 391,733.64, 587,642.58 and 167,117.81 is: 250,694.68
Step by Step Solution
- Step 1: Write the proportion equation
391,733.64 : 587,642.58 = 167,117.81 : x - Step 2: Convert to fraction form
391,733.64/587,642.58 = 167,117.81/x - Step 3: Cross multiply
391,733.64x = 587,642.58 × 167,117.81 - Step 4: Simplify right side
391,733.64x = 98,205,538,094.14 - Step 5: Solve for x
x = 98,205,538,094.14/391,733.64 - Step 6: Final answer
x = 250,694.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.