Finding the Fourth Proportional to 408,511.80, 612,767.70 and 124,201.80
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Solution
The fourth proportional to 408,511.80, 612,767.70 and 124,201.80 is: 186,302.70
Step by Step Solution
- Step 1: Write the proportion equation
408,511.80 : 612,767.70 = 124,201.80 : x - Step 2: Convert to fraction form
408,511.80/612,767.70 = 124,201.80/x - Step 3: Cross multiply
408,511.80x = 612,767.70 × 124,201.80 - Step 4: Simplify right side
408,511.80x = 76,106,851,321.86 - Step 5: Solve for x
x = 76,106,851,321.86/408,511.80 - Step 6: Final answer
x = 186,302.70
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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.