Finding the Fourth Proportional to 256,955.24, 354,588.36 and 143,778.08
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Solution
The fourth proportional to 256,955.24, 354,588.36 and 143,778.08 is: 198,408.23
Step by Step Solution
- Step 1: Write the proportion equation
256,955.24 : 354,588.36 = 143,778.08 : x - Step 2: Convert to fraction form
256,955.24/354,588.36 = 143,778.08/x - Step 3: Cross multiply
256,955.24x = 354,588.36 × 143,778.08 - Step 4: Simplify right side
256,955.24x = 50,982,033,591.15 - Step 5: Solve for x
x = 50,982,033,591.15/256,955.24 - Step 6: Final answer
x = 198,408.23
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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.