Finding the Fourth Proportional to 275,289.40, 412,934.10 and 88,319.80
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Solution
The fourth proportional to 275,289.40, 412,934.10 and 88,319.80 is: 132,479.70
Step by Step Solution
- Step 1: Write the proportion equation
275,289.40 : 412,934.10 = 88,319.80 : x - Step 2: Convert to fraction form
275,289.40/412,934.10 = 88,319.80/x - Step 3: Cross multiply
275,289.40x = 412,934.10 × 88,319.80 - Step 4: Simplify right side
275,289.40x = 36,470,257,125.18 - Step 5: Solve for x
x = 36,470,257,125.18/275,289.40 - Step 6: Final answer
x = 132,479.70
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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.