Finding the Fourth Proportional to 276,633.22, 381,743.55 and 154,122.70
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Solution
The fourth proportional to 276,633.22, 381,743.55 and 154,122.70 is: 212,683.59
Step by Step Solution
- Step 1: Write the proportion equation
276,633.22 : 381,743.55 = 154,122.70 : x - Step 2: Convert to fraction form
276,633.22/381,743.55 = 154,122.70/x - Step 3: Cross multiply
276,633.22x = 381,743.55 × 154,122.70 - Step 4: Simplify right side
276,633.22x = 58,835,346,633.59 - Step 5: Solve for x
x = 58,835,346,633.59/276,633.22 - Step 6: Final answer
x = 212,683.59
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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.