Finding the Fourth Proportional to 243,357.10, 365,129.13 and 171,379.08
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Solution
The fourth proportional to 243,357.10, 365,129.13 and 171,379.08 is: 257,134.45
Step by Step Solution
- Step 1: Write the proportion equation
243,357.10 : 365,129.13 = 171,379.08 : x - Step 2: Convert to fraction form
243,357.10/365,129.13 = 171,379.08/x - Step 3: Cross multiply
243,357.10x = 365,129.13 × 171,379.08 - Step 4: Simplify right side
243,357.10x = 62,575,493,523.71 - Step 5: Solve for x
x = 62,575,493,523.71/243,357.10 - Step 6: Final answer
x = 257,134.45
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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.