Finding the Fourth Proportional to 243,137.95, 335,516.68 and 135,714.88
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Solution
The fourth proportional to 243,137.95, 335,516.68 and 135,714.88 is: 187,278.89
Step by Step Solution
- Step 1: Write the proportion equation
243,137.95 : 335,516.68 = 135,714.88 : x - Step 2: Convert to fraction form
243,137.95/335,516.68 = 135,714.88/x - Step 3: Cross multiply
243,137.95x = 335,516.68 × 135,714.88 - Step 4: Simplify right side
243,137.95x = 45,534,605,964.20 - Step 5: Solve for x
x = 45,534,605,964.20/243,137.95 - Step 6: Final answer
x = 187,278.89
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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.