Finding the Fourth Proportional to 306,758.05, 423,325.11 and 170,788.47
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Solution
The fourth proportional to 306,758.05, 423,325.11 and 170,788.47 is: 235,687.53
Step by Step Solution
- Step 1: Write the proportion equation
306,758.05 : 423,325.11 = 170,788.47 : x - Step 2: Convert to fraction form
306,758.05/423,325.11 = 170,788.47/x - Step 3: Cross multiply
306,758.05x = 423,325.11 × 170,788.47 - Step 4: Simplify right side
306,758.05x = 72,299,046,902.47 - Step 5: Solve for x
x = 72,299,046,902.47/306,758.05 - Step 6: Final answer
x = 235,687.53
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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.