Finding the Fourth Proportional to 354,348.36, 489,199.68 and 245,610.72
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Solution
The fourth proportional to 354,348.36, 489,199.68 and 245,610.72 is: 339,080.69
Step by Step Solution
- Step 1: Write the proportion equation
354,348.36 : 489,199.68 = 245,610.72 : x - Step 2: Convert to fraction form
354,348.36/489,199.68 = 245,610.72/x - Step 3: Cross multiply
354,348.36x = 489,199.68 × 245,610.72 - Step 4: Simplify right side
354,348.36x = 120,152,685,628.57 - Step 5: Solve for x
x = 120,152,685,628.57/354,348.36 - Step 6: Final answer
x = 339,080.69
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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.