Finding the Fourth Proportional to 375,716.22, 518,985.30 and 280,056.84
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Solution
The fourth proportional to 375,716.22, 518,985.30 and 280,056.84 is: 386,848.84
Step by Step Solution
- Step 1: Write the proportion equation
375,716.22 : 518,985.30 = 280,056.84 : x - Step 2: Convert to fraction form
375,716.22/518,985.30 = 280,056.84/x - Step 3: Cross multiply
375,716.22x = 518,985.30 × 280,056.84 - Step 4: Simplify right side
375,716.22x = 145,345,383,124.45 - Step 5: Solve for x
x = 145,345,383,124.45/375,716.22 - Step 6: Final answer
x = 386,848.84
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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.