Finding the Fourth Proportional to 203,930.02, 305,938.76 and 85,533.12
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Solution
The fourth proportional to 203,930.02, 305,938.76 and 85,533.12 is: 128,318.02
Step by Step Solution
- Step 1: Write the proportion equation
203,930.02 : 305,938.76 = 85,533.12 : x - Step 2: Convert to fraction form
203,930.02/305,938.76 = 85,533.12/x - Step 3: Cross multiply
203,930.02x = 305,938.76 × 85,533.12 - Step 4: Simplify right side
203,930.02x = 26,167,896,671.73 - Step 5: Solve for x
x = 26,167,896,671.73/203,930.02 - Step 6: Final answer
x = 128,318.02
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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.