Finding the Fourth Proportional to 257,049.44, 354,724.56 and 142,317.08
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Solution
The fourth proportional to 257,049.44, 354,724.56 and 142,317.08 is: 196,395.54
Step by Step Solution
- Step 1: Write the proportion equation
257,049.44 : 354,724.56 = 142,317.08 : x - Step 2: Convert to fraction form
257,049.44/354,724.56 = 142,317.08/x - Step 3: Cross multiply
257,049.44x = 354,724.56 × 142,317.08 - Step 4: Simplify right side
257,049.44x = 50,483,363,583.48 - Step 5: Solve for x
x = 50,483,363,583.48/257,049.44 - Step 6: Final answer
x = 196,395.54
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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.