Finding the Fourth Proportional to 313,485.24, 432,742.02 and 211,648.62
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Solution
The fourth proportional to 313,485.24, 432,742.02 and 211,648.62 is: 292,164.48
Step by Step Solution
- Step 1: Write the proportion equation
313,485.24 : 432,742.02 = 211,648.62 : x - Step 2: Convert to fraction form
313,485.24/432,742.02 = 211,648.62/x - Step 3: Cross multiply
313,485.24x = 432,742.02 × 211,648.62 - Step 4: Simplify right side
313,485.24x = 91,589,251,349.01 - Step 5: Solve for x
x = 91,589,251,349.01/313,485.24 - Step 6: Final answer
x = 292,164.48
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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.