Finding the Fourth Proportional to 276,613.41, 381,722.87 and 155,766.63
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Solution
The fourth proportional to 276,613.41, 381,722.87 and 155,766.63 is: 214,955.90
Step by Step Solution
- Step 1: Write the proportion equation
276,613.41 : 381,722.87 = 155,766.63 : x - Step 2: Convert to fraction form
276,613.41/381,722.87 = 155,766.63/x - Step 3: Cross multiply
276,613.41x = 381,722.87 × 155,766.63 - Step 4: Simplify right side
276,613.41x = 59,459,684,275.00 - Step 5: Solve for x
x = 59,459,684,275.00/276,613.41 - Step 6: Final answer
x = 214,955.90
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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.