Finding the Fourth Proportional to 217,430.76, 299,776.68 and 140,814.48
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Solution
The fourth proportional to 217,430.76, 299,776.68 and 140,814.48 is: 194,144.09
Step by Step Solution
- Step 1: Write the proportion equation
217,430.76 : 299,776.68 = 140,814.48 : x - Step 2: Convert to fraction form
217,430.76/299,776.68 = 140,814.48/x - Step 3: Cross multiply
217,430.76x = 299,776.68 × 140,814.48 - Step 4: Simplify right side
217,430.76x = 42,212,897,310.33 - Step 5: Solve for x
x = 42,212,897,310.33/217,430.76 - Step 6: Final answer
x = 194,144.09
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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.