Finding the Fourth Proportional to 306,698.38, 423,239.20 and 170,732.08
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Solution
The fourth proportional to 306,698.38, 423,239.20 and 170,732.08 is: 235,607.73
Step by Step Solution
- Step 1: Write the proportion equation
306,698.38 : 423,239.20 = 170,732.08 : x - Step 2: Convert to fraction form
306,698.38/423,239.20 = 170,732.08/x - Step 3: Cross multiply
306,698.38x = 423,239.20 × 170,732.08 - Step 4: Simplify right side
306,698.38x = 72,260,508,953.54 - Step 5: Solve for x
x = 72,260,508,953.54/306,698.38 - Step 6: Final answer
x = 235,607.73
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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.