Finding the Fourth Proportional to 402,533.44, 555,496.56 and 221,245.28
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Solution
The fourth proportional to 402,533.44, 555,496.56 and 221,245.28 is: 305,318.71
Step by Step Solution
- Step 1: Write the proportion equation
402,533.44 : 555,496.56 = 221,245.28 : x - Step 2: Convert to fraction form
402,533.44/555,496.56 = 221,245.28/x - Step 3: Cross multiply
402,533.44x = 555,496.56 × 221,245.28 - Step 4: Simplify right side
402,533.44x = 122,900,991,956.24 - Step 5: Solve for x
x = 122,900,991,956.24/402,533.44 - Step 6: Final answer
x = 305,318.71
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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.