Finding the Fourth Proportional to 354,455.10, 489,128.58 and 201,472.02
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Solution
The fourth proportional to 354,455.10, 489,128.58 and 201,472.02 is: 278,020.33
Step by Step Solution
- Step 1: Write the proportion equation
354,455.10 : 489,128.58 = 201,472.02 : x - Step 2: Convert to fraction form
354,455.10/489,128.58 = 201,472.02/x - Step 3: Cross multiply
354,455.10x = 489,128.58 × 201,472.02 - Step 4: Simplify right side
354,455.10x = 98,545,723,052.33 - Step 5: Solve for x
x = 98,545,723,052.33/354,455.10 - Step 6: Final answer
x = 278,020.33
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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.