Finding the Fourth Proportional to 190,420.08, 285,748.74 and 172,682.79
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Solution
The fourth proportional to 190,420.08, 285,748.74 and 172,682.79 is: 259,131.76
Step by Step Solution
- Step 1: Write the proportion equation
190,420.08 : 285,748.74 = 172,682.79 : x - Step 2: Convert to fraction form
190,420.08/285,748.74 = 172,682.79/x - Step 3: Cross multiply
190,420.08x = 285,748.74 × 172,682.79 - Step 4: Simplify right side
190,420.08x = 49,343,889,662.18 - Step 5: Solve for x
x = 49,343,889,662.18/190,420.08 - Step 6: Final answer
x = 259,131.76
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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.