Finding the Fourth Proportional to 372,189.76, 513,624.30 and 202,425.12
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Solution
The fourth proportional to 372,189.76, 513,624.30 and 202,425.12 is: 279,347.99
Step by Step Solution
- Step 1: Write the proportion equation
372,189.76 : 513,624.30 = 202,425.12 : x - Step 2: Convert to fraction form
372,189.76/513,624.30 = 202,425.12/x - Step 3: Cross multiply
372,189.76x = 513,624.30 × 202,425.12 - Step 4: Simplify right side
372,189.76x = 103,970,460,562.42 - Step 5: Solve for x
x = 103,970,460,562.42/372,189.76 - Step 6: Final answer
x = 279,347.99
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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.