Finding the Fourth Proportional to 338,257.22, 507,409.47 and 135,853.34
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Solution
The fourth proportional to 338,257.22, 507,409.47 and 135,853.34 is: 203,789.50
Step by Step Solution
- Step 1: Write the proportion equation
338,257.22 : 507,409.47 = 135,853.34 : x - Step 2: Convert to fraction form
338,257.22/507,409.47 = 135,853.34/x - Step 3: Cross multiply
338,257.22x = 507,409.47 × 135,853.34 - Step 4: Simplify right side
338,257.22x = 68,933,271,247.13 - Step 5: Solve for x
x = 68,933,271,247.13/338,257.22 - Step 6: Final answer
x = 203,789.50
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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.