Finding the Fourth Proportional to 173,878.68, 239,867.80 and 113,421.88
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Solution
The fourth proportional to 173,878.68, 239,867.80 and 113,421.88 is: 156,466.89
Step by Step Solution
- Step 1: Write the proportion equation
173,878.68 : 239,867.80 = 113,421.88 : x - Step 2: Convert to fraction form
173,878.68/239,867.80 = 113,421.88/x - Step 3: Cross multiply
173,878.68x = 239,867.80 × 113,421.88 - Step 4: Simplify right side
173,878.68x = 27,206,256,827.46 - Step 5: Solve for x
x = 27,206,256,827.46/173,878.68 - Step 6: Final answer
x = 156,466.89
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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.