Finding the Fourth Proportional to 343,873.80, 515,810.70 and 265,141.80
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Solution
The fourth proportional to 343,873.80, 515,810.70 and 265,141.80 is: 397,712.70
Step by Step Solution
- Step 1: Write the proportion equation
343,873.80 : 515,810.70 = 265,141.80 : x - Step 2: Convert to fraction form
343,873.80/515,810.70 = 265,141.80/x - Step 3: Cross multiply
343,873.80x = 515,810.70 × 265,141.80 - Step 4: Simplify right side
343,873.80x = 136,762,977,457.26 - Step 5: Solve for x
x = 136,762,977,457.26/343,873.80 - Step 6: Final answer
x = 397,712.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.