Finding the Fourth Proportional to 385,335.21, 531,750.58 and 213,242.82
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Solution
The fourth proportional to 385,335.21, 531,750.58 and 213,242.82 is: 294,268.45
Step by Step Solution
- Step 1: Write the proportion equation
385,335.21 : 531,750.58 = 213,242.82 : x - Step 2: Convert to fraction form
385,335.21/531,750.58 = 213,242.82/x - Step 3: Cross multiply
385,335.21x = 531,750.58 × 213,242.82 - Step 4: Simplify right side
385,335.21x = 113,391,993,215.84 - Step 5: Solve for x
x = 113,391,993,215.84/385,335.21 - Step 6: Final answer
x = 294,268.45
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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.