Finding the Fourth Proportional to 438,018.76, 656,745.64 and 171,806.18
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Solution
The fourth proportional to 438,018.76, 656,745.64 and 171,806.18 is: 257,598.46
Step by Step Solution
- Step 1: Write the proportion equation
438,018.76 : 656,745.64 = 171,806.18 : x - Step 2: Convert to fraction form
438,018.76/656,745.64 = 171,806.18/x - Step 3: Cross multiply
438,018.76x = 656,745.64 × 171,806.18 - Step 4: Simplify right side
438,018.76x = 112,832,959,640.06 - Step 5: Solve for x
x = 112,832,959,640.06/438,018.76 - Step 6: Final answer
x = 257,598.46
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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.