Finding the Fourth Proportional to 243,491.76, 336,012.17 and 136,062.68
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Solution
The fourth proportional to 243,491.76, 336,012.17 and 136,062.68 is: 187,762.88
Step by Step Solution
- Step 1: Write the proportion equation
243,491.76 : 336,012.17 = 136,062.68 : x - Step 2: Convert to fraction form
243,491.76/336,012.17 = 136,062.68/x - Step 3: Cross multiply
243,491.76x = 336,012.17 × 136,062.68 - Step 4: Simplify right side
243,491.76x = 45,718,714,002.44 - Step 5: Solve for x
x = 45,718,714,002.44/243,491.76 - Step 6: Final answer
x = 187,762.88
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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.