Finding the Fourth Proportional to 306,860.10, 423,436.68 and 170,906.74
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Solution
The fourth proportional to 306,860.10, 423,436.68 and 170,906.74 is: 235,834.45
Step by Step Solution
- Step 1: Write the proportion equation
306,860.10 : 423,436.68 = 170,906.74 : x - Step 2: Convert to fraction form
306,860.10/423,436.68 = 170,906.74/x - Step 3: Cross multiply
306,860.10x = 423,436.68 × 170,906.74 - Step 4: Simplify right side
306,860.10x = 72,368,182,575.22 - Step 5: Solve for x
x = 72,368,182,575.22/306,860.10 - Step 6: Final answer
x = 235,834.45
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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.