Finding the Fourth Proportional to 199,572.29, 299,199.48 and 115,236.78
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Solution
The fourth proportional to 199,572.29, 299,199.48 and 115,236.78 is: 172,763.39
Step by Step Solution
- Step 1: Write the proportion equation
199,572.29 : 299,199.48 = 115,236.78 : x - Step 2: Convert to fraction form
199,572.29/299,199.48 = 115,236.78/x - Step 3: Cross multiply
199,572.29x = 299,199.48 × 115,236.78 - Step 4: Simplify right side
199,572.29x = 34,478,784,652.87 - Step 5: Solve for x
x = 34,478,784,652.87/199,572.29 - Step 6: Final answer
x = 172,763.39
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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.