Finding the Fourth Proportional to 313,214.42, 432,239.07 and 169,975.70
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Solution
The fourth proportional to 313,214.42, 432,239.07 and 169,975.70 is: 234,568.19
Step by Step Solution
- Step 1: Write the proportion equation
313,214.42 : 432,239.07 = 169,975.70 : x - Step 2: Convert to fraction form
313,214.42/432,239.07 = 169,975.70/x - Step 3: Cross multiply
313,214.42x = 432,239.07 × 169,975.70 - Step 4: Simplify right side
313,214.42x = 73,470,138,490.60 - Step 5: Solve for x
x = 73,470,138,490.60/313,214.42 - Step 6: Final answer
x = 234,568.19
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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.