Finding the Fourth Proportional to 306,605.28, 423,135.99 and 170,650.44
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Solution
The fourth proportional to 306,605.28, 423,135.99 and 170,650.44 is: 235,509.13
Step by Step Solution
- Step 1: Write the proportion equation
306,605.28 : 423,135.99 = 170,650.44 : x - Step 2: Convert to fraction form
306,605.28/423,135.99 = 170,650.44/x - Step 3: Cross multiply
306,605.28x = 423,135.99 × 170,650.44 - Step 4: Simplify right side
306,605.28x = 72,208,342,873.34 - Step 5: Solve for x
x = 72,208,342,873.34/306,605.28 - Step 6: Final answer
x = 235,509.13
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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.