Finding the Fourth Proportional to 276,257.54, 381,269.14 and 155,403.92
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Solution
The fourth proportional to 276,257.54, 381,269.14 and 155,403.92 is: 214,476.39
Step by Step Solution
- Step 1: Write the proportion equation
276,257.54 : 381,269.14 = 155,403.92 : x - Step 2: Convert to fraction form
276,257.54/381,269.14 = 155,403.92/x - Step 3: Cross multiply
276,257.54x = 381,269.14 × 155,403.92 - Step 4: Simplify right side
276,257.54x = 59,250,718,931.03 - Step 5: Solve for x
x = 59,250,718,931.03/276,257.54 - Step 6: Final answer
x = 214,476.39
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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.