Finding the Fourth Proportional to 145,270.12, 217,780.38 and 50,487.99
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Solution
The fourth proportional to 145,270.12, 217,780.38 and 50,487.99 is: 75,688.61
Step by Step Solution
- Step 1: Write the proportion equation
145,270.12 : 217,780.38 = 50,487.99 : x - Step 2: Convert to fraction form
145,270.12/217,780.38 = 50,487.99/x - Step 3: Cross multiply
145,270.12x = 217,780.38 × 50,487.99 - Step 4: Simplify right side
145,270.12x = 10,995,292,641.63 - Step 5: Solve for x
x = 10,995,292,641.63/145,270.12 - Step 6: Final answer
x = 75,688.61
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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.