Finding the Fourth Proportional to 313,135.65, 432,128.93 and 169,895.97
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Solution
The fourth proportional to 313,135.65, 432,128.93 and 169,895.97 is: 234,457.38
Step by Step Solution
- Step 1: Write the proportion equation
313,135.65 : 432,128.93 = 169,895.97 : x - Step 2: Convert to fraction form
313,135.65/432,128.93 = 169,895.97/x - Step 3: Cross multiply
313,135.65x = 432,128.93 × 169,895.97 - Step 4: Simplify right side
313,135.65x = 73,416,962,877.93 - Step 5: Solve for x
x = 73,416,962,877.93/313,135.65 - Step 6: Final answer
x = 234,457.38
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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.