Finding the Fourth Proportional to 276,166.43, 381,106.03 and 155,307.68
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Solution
The fourth proportional to 276,166.43, 381,106.03 and 155,307.68 is: 214,322.55
Step by Step Solution
- Step 1: Write the proportion equation
276,166.43 : 381,106.03 = 155,307.68 : x - Step 2: Convert to fraction form
276,166.43/381,106.03 = 155,307.68/x - Step 3: Cross multiply
276,166.43x = 381,106.03 × 155,307.68 - Step 4: Simplify right side
276,166.43x = 59,188,693,353.31 - Step 5: Solve for x
x = 59,188,693,353.31/276,166.43 - Step 6: Final answer
x = 214,322.55
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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.