Finding the Fourth Proportional to 618,203.31, 927,037.63 and 213,438.21
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Solution
The fourth proportional to 618,203.31, 927,037.63 and 213,438.21 is: 320,065.02
Step by Step Solution
- Step 1: Write the proportion equation
618,203.31 : 927,037.63 = 213,438.21 : x - Step 2: Convert to fraction form
618,203.31/927,037.63 = 213,438.21/x - Step 3: Cross multiply
618,203.31x = 927,037.63 × 213,438.21 - Step 4: Simplify right side
618,203.31x = 197,865,252,349.84 - Step 5: Solve for x
x = 197,865,252,349.84/618,203.31 - Step 6: Final answer
x = 320,065.02
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.