Finding the Fourth Proportional to 276,265.44, 381,460.86 and 215,731.08
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Solution
The fourth proportional to 276,265.44, 381,460.86 and 215,731.08 is: 297,876.43
Step by Step Solution
- Step 1: Write the proportion equation
276,265.44 : 381,460.86 = 215,731.08 : x - Step 2: Convert to fraction form
276,265.44/381,460.86 = 215,731.08/x - Step 3: Cross multiply
276,265.44x = 381,460.86 × 215,731.08 - Step 4: Simplify right side
276,265.44x = 82,292,963,305.53 - Step 5: Solve for x
x = 82,292,963,305.53/276,265.44 - Step 6: Final answer
x = 297,876.43
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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.