Finding the Fourth Proportional to 285,125.80, 427,688.70 and 238,469.80
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Solution
The fourth proportional to 285,125.80, 427,688.70 and 238,469.80 is: 357,704.70
Step by Step Solution
- Step 1: Write the proportion equation
285,125.80 : 427,688.70 = 238,469.80 : x - Step 2: Convert to fraction form
285,125.80/427,688.70 = 238,469.80/x - Step 3: Cross multiply
285,125.80x = 427,688.70 × 238,469.80 - Step 4: Simplify right side
285,125.80x = 101,990,838,751.26 - Step 5: Solve for x
x = 101,990,838,751.26/285,125.80 - Step 6: Final answer
x = 357,704.70
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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.