Finding the Fourth Proportional to 291,625.20, 437,437.80 and 125,413.20
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Solution
The fourth proportional to 291,625.20, 437,437.80 and 125,413.20 is: 188,119.80
Step by Step Solution
- Step 1: Write the proportion equation
291,625.20 : 437,437.80 = 125,413.20 : x - Step 2: Convert to fraction form
291,625.20/437,437.80 = 125,413.20/x - Step 3: Cross multiply
291,625.20x = 437,437.80 × 125,413.20 - Step 4: Simplify right side
291,625.20x = 54,860,474,298.96 - Step 5: Solve for x
x = 54,860,474,298.96/291,625.20 - Step 6: Final answer
x = 188,119.80
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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.