Finding the Fourth Proportional to 372,285.70, 558,428.55 and 147,699.70
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Solution
The fourth proportional to 372,285.70, 558,428.55 and 147,699.70 is: 221,549.55
Step by Step Solution
- Step 1: Write the proportion equation
372,285.70 : 558,428.55 = 147,699.70 : x - Step 2: Convert to fraction form
372,285.70/558,428.55 = 147,699.70/x - Step 3: Cross multiply
372,285.70x = 558,428.55 × 147,699.70 - Step 4: Simplify right side
372,285.70x = 82,479,729,306.44 - Step 5: Solve for x
x = 82,479,729,306.44/372,285.70 - Step 6: Final answer
x = 221,549.55
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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.