Finding the Fourth Proportional to 354,661.74, 489,430.68 and 201,699.98
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Solution
The fourth proportional to 354,661.74, 489,430.68 and 201,699.98 is: 278,344.54
Step by Step Solution
- Step 1: Write the proportion equation
354,661.74 : 489,430.68 = 201,699.98 : x - Step 2: Convert to fraction form
354,661.74/489,430.68 = 201,699.98/x - Step 3: Cross multiply
354,661.74x = 489,430.68 × 201,699.98 - Step 4: Simplify right side
354,661.74x = 98,718,158,367.39 - Step 5: Solve for x
x = 98,718,158,367.39/354,661.74 - Step 6: Final answer
x = 278,344.54
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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.