Finding the Fourth Proportional to 292,923.80, 438,413.70 and 212,733.80
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Solution
The fourth proportional to 292,923.80, 438,413.70 and 212,733.80 is: 318,394.79
Step by Step Solution
- Step 1: Write the proportion equation
292,923.80 : 438,413.70 = 212,733.80 : x - Step 2: Convert to fraction form
292,923.80/438,413.70 = 212,733.80/x - Step 3: Cross multiply
292,923.80x = 438,413.70 × 212,733.80 - Step 4: Simplify right side
292,923.80x = 93,265,412,373.06 - Step 5: Solve for x
x = 93,265,412,373.06/292,923.80 - Step 6: Final answer
x = 318,394.79
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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.