Finding the Fourth Proportional to 276,124.85, 381,044.67 and 155,263.02
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Solution
The fourth proportional to 276,124.85, 381,044.67 and 155,263.02 is: 214,258.69
Step by Step Solution
- Step 1: Write the proportion equation
276,124.85 : 381,044.67 = 155,263.02 : x - Step 2: Convert to fraction form
276,124.85/381,044.67 = 155,263.02/x - Step 3: Cross multiply
276,124.85x = 381,044.67 × 155,263.02 - Step 4: Simplify right side
276,124.85x = 59,162,146,219.10 - Step 5: Solve for x
x = 59,162,146,219.10/276,124.85 - Step 6: Final answer
x = 214,258.69
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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.