Finding the Fourth Proportional to 276,277.20, 381,261.99 and 155,418.58
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Solution
The fourth proportional to 276,277.20, 381,261.99 and 155,418.58 is: 214,477.34
Step by Step Solution
- Step 1: Write the proportion equation
276,277.20 : 381,261.99 = 155,418.58 : x - Step 2: Convert to fraction form
276,277.20/381,261.99 = 155,418.58/x - Step 3: Cross multiply
276,277.20x = 381,261.99 × 155,418.58 - Step 4: Simplify right side
276,277.20x = 59,255,198,153.17 - Step 5: Solve for x
x = 59,255,198,153.17/276,277.20 - Step 6: Final answer
x = 214,477.34
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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.