Finding the Fourth Proportional to 276,320.64, 381,336.48 and 163,140.96
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Solution
The fourth proportional to 276,320.64, 381,336.48 and 163,140.96 is: 225,142.79
Step by Step Solution
- Step 1: Write the proportion equation
276,320.64 : 381,336.48 = 163,140.96 : x - Step 2: Convert to fraction form
276,320.64/381,336.48 = 163,140.96/x - Step 3: Cross multiply
276,320.64x = 381,336.48 × 163,140.96 - Step 4: Simplify right side
276,320.64x = 62,211,599,430.22 - Step 5: Solve for x
x = 62,211,599,430.22/276,320.64 - Step 6: Final answer
x = 225,142.79
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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.