Finding the Fourth Proportional to 247,281.80, 370,922.70 and 142,305.80
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Solution
The fourth proportional to 247,281.80, 370,922.70 and 142,305.80 is: 213,458.70
Step by Step Solution
- Step 1: Write the proportion equation
247,281.80 : 370,922.70 = 142,305.80 : x - Step 2: Convert to fraction form
247,281.80/370,922.70 = 142,305.80/x - Step 3: Cross multiply
247,281.80x = 370,922.70 × 142,305.80 - Step 4: Simplify right side
247,281.80x = 52,784,451,561.66 - Step 5: Solve for x
x = 52,784,451,561.66/247,281.80 - Step 6: Final answer
x = 213,458.70
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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.