Finding the Fourth Proportional to 216,013.56, 297,904.68 and 135,449.88
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Solution
The fourth proportional to 216,013.56, 297,904.68 and 135,449.88 is: 186,799.17
Step by Step Solution
- Step 1: Write the proportion equation
216,013.56 : 297,904.68 = 135,449.88 : x - Step 2: Convert to fraction form
216,013.56/297,904.68 = 135,449.88/x - Step 3: Cross multiply
216,013.56x = 297,904.68 × 135,449.88 - Step 4: Simplify right side
216,013.56x = 40,351,153,157.44 - Step 5: Solve for x
x = 40,351,153,157.44/216,013.56 - Step 6: Final answer
x = 186,799.17
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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.