Finding the Fourth Proportional to 203,461.06, 280,779.62 and 112,820.84
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Solution
The fourth proportional to 203,461.06, 280,779.62 and 112,820.84 is: 155,694.62
Step by Step Solution
- Step 1: Write the proportion equation
203,461.06 : 280,779.62 = 112,820.84 : x - Step 2: Convert to fraction form
203,461.06/280,779.62 = 112,820.84/x - Step 3: Cross multiply
203,461.06x = 280,779.62 × 112,820.84 - Step 4: Simplify right side
203,461.06x = 31,677,792,721.13 - Step 5: Solve for x
x = 31,677,792,721.13/203,461.06 - Step 6: Final answer
x = 155,694.62
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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.