Finding the Fourth Proportional to 612,104.80, 918,286.80 and 185,605.60
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Solution
The fourth proportional to 612,104.80, 918,286.80 and 185,605.60 is: 278,447.70
Step by Step Solution
- Step 1: Write the proportion equation
612,104.80 : 918,286.80 = 185,605.60 : x - Step 2: Convert to fraction form
612,104.80/918,286.80 = 185,605.60/x - Step 3: Cross multiply
612,104.80x = 918,286.80 × 185,605.60 - Step 4: Simplify right side
612,104.80x = 170,439,172,486.08 - Step 5: Solve for x
x = 170,439,172,486.08/612,104.80 - Step 6: Final answer
x = 278,447.70
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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.