Finding the Fourth Proportional to 243,399.84, 335,909.94 and 140,065.68
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Solution
The fourth proportional to 243,399.84, 335,909.94 and 140,065.68 is: 193,301.09
Step by Step Solution
- Step 1: Write the proportion equation
243,399.84 : 335,909.94 = 140,065.68 : x - Step 2: Convert to fraction form
243,399.84/335,909.94 = 140,065.68/x - Step 3: Cross multiply
243,399.84x = 335,909.94 × 140,065.68 - Step 4: Simplify right side
243,399.84x = 47,049,454,164.86 - Step 5: Solve for x
x = 47,049,454,164.86/243,399.84 - Step 6: Final answer
x = 193,301.09
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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.