Finding the Fourth Proportional to 243,491.18, 336,011.37 and 136,062.09
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Solution
The fourth proportional to 243,491.18, 336,011.37 and 136,062.09 is: 187,762.08
Step by Step Solution
- Step 1: Write the proportion equation
243,491.18 : 336,011.37 = 136,062.09 : x - Step 2: Convert to fraction form
243,491.18/336,011.37 = 136,062.09/x - Step 3: Cross multiply
243,491.18x = 336,011.37 × 136,062.09 - Step 4: Simplify right side
243,491.18x = 45,718,408,755.73 - Step 5: Solve for x
x = 45,718,408,755.73/243,491.18 - Step 6: Final answer
x = 187,762.08
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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.