Finding the Fourth Proportional to 171,408.13, 236,543.21 and 104,340.13
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Solution
The fourth proportional to 171,408.13, 236,543.21 and 104,340.13 is: 143,989.37
Step by Step Solution
- Step 1: Write the proportion equation
171,408.13 : 236,543.21 = 104,340.13 : x - Step 2: Convert to fraction form
171,408.13/236,543.21 = 104,340.13/x - Step 3: Cross multiply
171,408.13x = 236,543.21 × 104,340.13 - Step 4: Simplify right side
171,408.13x = 24,680,949,282.02 - Step 5: Solve for x
x = 24,680,949,282.02/171,408.13 - Step 6: Final answer
x = 143,989.37
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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.