Finding the Fourth Proportional to 353,413.80, 530,120.70 and 213,445.80
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Solution
The fourth proportional to 353,413.80, 530,120.70 and 213,445.80 is: 320,168.70
Step by Step Solution
- Step 1: Write the proportion equation
353,413.80 : 530,120.70 = 213,445.80 : x - Step 2: Convert to fraction form
353,413.80/530,120.70 = 213,445.80/x - Step 3: Cross multiply
353,413.80x = 530,120.70 × 213,445.80 - Step 4: Simplify right side
353,413.80x = 113,152,036,908.06 - Step 5: Solve for x
x = 113,152,036,908.06/353,413.80 - Step 6: Final answer
x = 320,168.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.