Finding the Fourth Proportional to 354,413.32, 489,102.62 and 201,457.88
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Solution
The fourth proportional to 354,413.32, 489,102.62 and 201,457.88 is: 278,018.83
Step by Step Solution
- Step 1: Write the proportion equation
354,413.32 : 489,102.62 = 201,457.88 : x - Step 2: Convert to fraction form
354,413.32/489,102.62 = 201,457.88/x - Step 3: Cross multiply
354,413.32x = 489,102.62 × 201,457.88 - Step 4: Simplify right side
354,413.32x = 98,533,576,927.65 - Step 5: Solve for x
x = 98,533,576,927.65/354,413.32 - Step 6: Final answer
x = 278,018.83
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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.