Finding the Fourth Proportional to 326,890.12, 490,366.98 and 127,226.74
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Solution
The fourth proportional to 326,890.12, 490,366.98 and 127,226.74 is: 190,852.49
Step by Step Solution
- Step 1: Write the proportion equation
326,890.12 : 490,366.98 = 127,226.74 : x - Step 2: Convert to fraction form
326,890.12/490,366.98 = 127,226.74/x - Step 3: Cross multiply
326,890.12x = 490,366.98 × 127,226.74 - Step 4: Simplify right side
326,890.12x = 62,387,792,269.05 - Step 5: Solve for x
x = 62,387,792,269.05/326,890.12 - Step 6: Final answer
x = 190,852.49
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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.