Finding the Fourth Proportional to 292,634.40, 438,688.80 and 115,262.40
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Solution
The fourth proportional to 292,634.40, 438,688.80 and 115,262.40 is: 172,790.09
Step by Step Solution
- Step 1: Write the proportion equation
292,634.40 : 438,688.80 = 115,262.40 : x - Step 2: Convert to fraction form
292,634.40/438,688.80 = 115,262.40/x - Step 3: Cross multiply
292,634.40x = 438,688.80 × 115,262.40 - Step 4: Simplify right side
292,634.40x = 50,564,323,941.12 - Step 5: Solve for x
x = 50,564,323,941.12/292,634.40 - Step 6: Final answer
x = 172,790.09
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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.