Finding the Fourth Proportional to 313,209.71, 432,229.68 and 169,969.75
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Solution
The fourth proportional to 313,209.71, 432,229.68 and 169,969.75 is: 234,558.41
Step by Step Solution
- Step 1: Write the proportion equation
313,209.71 : 432,229.68 = 169,969.75 : x - Step 2: Convert to fraction form
313,209.71/432,229.68 = 169,969.75/x - Step 3: Cross multiply
313,209.71x = 432,229.68 × 169,969.75 - Step 4: Simplify right side
313,209.71x = 73,465,970,227.26 - Step 5: Solve for x
x = 73,465,970,227.26/313,209.71 - Step 6: Final answer
x = 234,558.41
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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.