Finding the Fourth Proportional to 193,671.20, 290,506.80 and 68,967.20
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Solution
The fourth proportional to 193,671.20, 290,506.80 and 68,967.20 is: 103,450.80
Step by Step Solution
- Step 1: Write the proportion equation
193,671.20 : 290,506.80 = 68,967.20 : x - Step 2: Convert to fraction form
193,671.20/290,506.80 = 68,967.20/x - Step 3: Cross multiply
193,671.20x = 290,506.80 × 68,967.20 - Step 4: Simplify right side
193,671.20x = 20,035,440,576.96 - Step 5: Solve for x
x = 20,035,440,576.96/193,671.20 - Step 6: Final answer
x = 103,450.80
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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.