Finding the Fourth Proportional to 239,328.21, 359,035.01 and 79,413.75
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Solution
The fourth proportional to 239,328.21, 359,035.01 and 79,413.75 is: 119,134.79
Step by Step Solution
- Step 1: Write the proportion equation
239,328.21 : 359,035.01 = 79,413.75 : x - Step 2: Convert to fraction form
239,328.21/359,035.01 = 79,413.75/x - Step 3: Cross multiply
239,328.21x = 359,035.01 × 79,413.75 - Step 4: Simplify right side
239,328.21x = 28,512,316,128.32 - Step 5: Solve for x
x = 28,512,316,128.32/239,328.21 - Step 6: Final answer
x = 119,134.79
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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.