Finding the Fourth Proportional to 278,938.80, 417,793.80 and 242,074.80
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Solution
The fourth proportional to 278,938.80, 417,793.80 and 242,074.80 is: 362,579.00
Step by Step Solution
- Step 1: Write the proportion equation
278,938.80 : 417,793.80 = 242,074.80 : x - Step 2: Convert to fraction form
278,938.80/417,793.80 = 242,074.80/x - Step 3: Cross multiply
278,938.80x = 417,793.80 × 242,074.80 - Step 4: Simplify right side
278,938.80x = 101,137,350,576.24 - Step 5: Solve for x
x = 101,137,350,576.24/278,938.80 - Step 6: Final answer
x = 362,579.00
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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.