Finding the Fourth Proportional to 292,713.20, 438,413.70 and 240,225.20
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Solution
The fourth proportional to 292,713.20, 438,413.70 and 240,225.20 is: 359,799.35
Step by Step Solution
- Step 1: Write the proportion equation
292,713.20 : 438,413.70 = 240,225.20 : x - Step 2: Convert to fraction form
292,713.20/438,413.70 = 240,225.20/x - Step 3: Cross multiply
292,713.20x = 438,413.70 × 240,225.20 - Step 4: Simplify right side
292,713.20x = 105,318,018,765.24 - Step 5: Solve for x
x = 105,318,018,765.24/292,713.20 - Step 6: Final answer
x = 359,799.35
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1.5x scale
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.