Finding the Fourth Proportional to 313,358.44, 432,439.14 and 170,118.76
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Solution
The fourth proportional to 313,358.44, 432,439.14 and 170,118.76 is: 234,766.33
Step by Step Solution
- Step 1: Write the proportion equation
313,358.44 : 432,439.14 = 170,118.76 : x - Step 2: Convert to fraction form
313,358.44/432,439.14 = 170,118.76/x - Step 3: Cross multiply
313,358.44x = 432,439.14 × 170,118.76 - Step 4: Simplify right side
313,358.44x = 73,566,010,272.27 - Step 5: Solve for x
x = 73,566,010,272.27/313,358.44 - Step 6: Final answer
x = 234,766.33
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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.