Finding the Fourth Proportional to 313,998.21, 470,870.51 and 121,771.44
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Solution
The fourth proportional to 313,998.21, 470,870.51 and 121,771.44 is: 182,607.98
Step by Step Solution
- Step 1: Write the proportion equation
313,998.21 : 470,870.51 = 121,771.44 : x - Step 2: Convert to fraction form
313,998.21/470,870.51 = 121,771.44/x - Step 3: Cross multiply
313,998.21x = 470,870.51 × 121,771.44 - Step 4: Simplify right side
313,998.21x = 57,338,580,056.23 - Step 5: Solve for x
x = 57,338,580,056.23/313,998.21 - Step 6: Final answer
x = 182,607.98
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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.