Finding the Fourth Proportional to 276,606.84, 381,697.74 and 155,754.84
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Solution
The fourth proportional to 276,606.84, 381,697.74 and 155,754.84 is: 214,930.59
Step by Step Solution
- Step 1: Write the proportion equation
276,606.84 : 381,697.74 = 155,754.84 : x - Step 2: Convert to fraction form
276,606.84/381,697.74 = 155,754.84/x - Step 3: Cross multiply
276,606.84x = 381,697.74 × 155,754.84 - Step 4: Simplify right side
276,606.84x = 59,451,270,422.06 - Step 5: Solve for x
x = 59,451,270,422.06/276,606.84 - Step 6: Final answer
x = 214,930.59
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1.5x scale
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.