Finding the Fourth Proportional to 338,395.21, 507,574.11 and 113,732.44
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Solution
The fourth proportional to 338,395.21, 507,574.11 and 113,732.44 is: 170,592.37
Step by Step Solution
- Step 1: Write the proportion equation
338,395.21 : 507,574.11 = 113,732.44 : x - Step 2: Convert to fraction form
338,395.21/507,574.11 = 113,732.44/x - Step 3: Cross multiply
338,395.21x = 507,574.11 × 113,732.44 - Step 4: Simplify right side
338,395.21x = 57,727,641,168.69 - Step 5: Solve for x
x = 57,727,641,168.69/338,395.21 - Step 6: Final answer
x = 170,592.37
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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.