Finding the Fourth Proportional to 383,743.80, 575,615.70 and 243,775.80
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Solution
The fourth proportional to 383,743.80, 575,615.70 and 243,775.80 is: 365,663.70
Step by Step Solution
- Step 1: Write the proportion equation
383,743.80 : 575,615.70 = 243,775.80 : x - Step 2: Convert to fraction form
383,743.80/575,615.70 = 243,775.80/x - Step 3: Cross multiply
383,743.80x = 575,615.70 × 243,775.80 - Step 4: Simplify right side
383,743.80x = 140,321,177,760.06 - Step 5: Solve for x
x = 140,321,177,760.06/383,743.80 - Step 6: Final answer
x = 365,663.70
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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.