Finding the Fourth Proportional to 226,290.71, 312,246.50 and 130,778.97
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Solution
The fourth proportional to 226,290.71, 312,246.50 and 130,778.97 is: 180,454.94
Step by Step Solution
- Step 1: Write the proportion equation
226,290.71 : 312,246.50 = 130,778.97 : x - Step 2: Convert to fraction form
226,290.71/312,246.50 = 130,778.97/x - Step 3: Cross multiply
226,290.71x = 312,246.50 × 130,778.97 - Step 4: Simplify right side
226,290.71x = 40,835,275,002.21 - Step 5: Solve for x
x = 40,835,275,002.21/226,290.71 - Step 6: Final answer
x = 180,454.94
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.