Finding the Fourth Proportional to 243,475.68, 335,990.12 and 136,046.58
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Solution
The fourth proportional to 243,475.68, 335,990.12 and 136,046.58 is: 187,740.75
Step by Step Solution
- Step 1: Write the proportion equation
243,475.68 : 335,990.12 = 136,046.58 : x - Step 2: Convert to fraction form
243,475.68/335,990.12 = 136,046.58/x - Step 3: Cross multiply
243,475.68x = 335,990.12 × 136,046.58 - Step 4: Simplify right side
243,475.68x = 45,710,306,739.79 - Step 5: Solve for x
x = 45,710,306,739.79/243,475.68 - Step 6: Final answer
x = 187,740.75
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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.