Finding the Fourth Proportional to 276,395.24, 381,420.97 and 155,536.46
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Solution
The fourth proportional to 276,395.24, 381,420.97 and 155,536.46 is: 214,637.80
Step by Step Solution
- Step 1: Write the proportion equation
276,395.24 : 381,420.97 = 155,536.46 : x - Step 2: Convert to fraction form
276,395.24/381,420.97 = 155,536.46/x - Step 3: Cross multiply
276,395.24x = 381,420.97 × 155,536.46 - Step 4: Simplify right side
276,395.24x = 59,324,867,443.57 - Step 5: Solve for x
x = 59,324,867,443.57/276,395.24 - Step 6: Final answer
x = 214,637.80
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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.