Finding the Fourth Proportional to 243,470.18, 335,982.58 and 136,041.09
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Solution
The fourth proportional to 243,470.18, 335,982.58 and 136,041.09 is: 187,733.21
Step by Step Solution
- Step 1: Write the proportion equation
243,470.18 : 335,982.58 = 136,041.09 : x - Step 2: Convert to fraction form
243,470.18/335,982.58 = 136,041.09/x - Step 3: Cross multiply
243,470.18x = 335,982.58 × 136,041.09 - Step 4: Simplify right side
243,470.18x = 45,707,438,404.26 - Step 5: Solve for x
x = 45,707,438,404.26/243,470.18 - Step 6: Final answer
x = 187,733.21
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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.