Finding the Fourth Proportional to 213,641.84, 320,462.36 and 80,551.96
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Solution
The fourth proportional to 213,641.84, 320,462.36 and 80,551.96 is: 120,827.79
Step by Step Solution
- Step 1: Write the proportion equation
213,641.84 : 320,462.36 = 80,551.96 : x - Step 2: Convert to fraction form
213,641.84/320,462.36 = 80,551.96/x - Step 3: Cross multiply
213,641.84x = 320,462.36 × 80,551.96 - Step 4: Simplify right side
213,641.84x = 25,813,871,204.23 - Step 5: Solve for x
x = 25,813,871,204.23/213,641.84 - Step 6: Final answer
x = 120,827.79
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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.