Finding the Fourth Proportional to 352,415.48, 486,214.99 and 225,165.56
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Solution
The fourth proportional to 352,415.48, 486,214.99 and 225,165.56 is: 310,652.84
Step by Step Solution
- Step 1: Write the proportion equation
352,415.48 : 486,214.99 = 225,165.56 : x - Step 2: Convert to fraction form
352,415.48/486,214.99 = 225,165.56/x - Step 3: Cross multiply
352,415.48x = 486,214.99 × 225,165.56 - Step 4: Simplify right side
352,415.48x = 109,478,867,509.76 - Step 5: Solve for x
x = 109,478,867,509.76/352,415.48 - Step 6: Final answer
x = 310,652.84
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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.