Finding the Fourth Proportional to 354,458.10, 489,132.72 and 201,475.02
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Solution
The fourth proportional to 354,458.10, 489,132.72 and 201,475.02 is: 278,024.47
Step by Step Solution
- Step 1: Write the proportion equation
354,458.10 : 489,132.72 = 201,475.02 : x - Step 2: Convert to fraction form
354,458.10/489,132.72 = 201,475.02/x - Step 3: Cross multiply
354,458.10x = 489,132.72 × 201,475.02 - Step 4: Simplify right side
354,458.10x = 98,548,024,544.65 - Step 5: Solve for x
x = 98,548,024,544.65/354,458.10 - Step 6: Final answer
x = 278,024.47
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.