Finding the Fourth Proportional to 226,257.01, 312,340.80 and 130,745.05
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Solution
The fourth proportional to 226,257.01, 312,340.80 and 130,745.05 is: 180,489.50
Step by Step Solution
- Step 1: Write the proportion equation
226,257.01 : 312,340.80 = 130,745.05 : x - Step 2: Convert to fraction form
226,257.01/312,340.80 = 130,745.05/x - Step 3: Cross multiply
226,257.01x = 312,340.80 × 130,745.05 - Step 4: Simplify right side
226,257.01x = 40,837,013,513.04 - Step 5: Solve for x
x = 40,837,013,513.04/226,257.01 - Step 6: Final answer
x = 180,489.50
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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.