Finding the Fourth Proportional to 253,742.03, 350,163.99 and 139,025.02
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Solution
The fourth proportional to 253,742.03, 350,163.99 and 139,025.02 is: 191,854.52
Step by Step Solution
- Step 1: Write the proportion equation
253,742.03 : 350,163.99 = 139,025.02 : x - Step 2: Convert to fraction form
253,742.03/350,163.99 = 139,025.02/x - Step 3: Cross multiply
253,742.03x = 350,163.99 × 139,025.02 - Step 4: Simplify right side
253,742.03x = 48,681,554,118.33 - Step 5: Solve for x
x = 48,681,554,118.33/253,742.03 - Step 6: Final answer
x = 191,854.52
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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.