Finding the Fourth Proportional to 313,649.28, 432,829.44 and 170,403.84
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Solution
The fourth proportional to 313,649.28, 432,829.44 and 170,403.84 is: 235,153.73
Step by Step Solution
- Step 1: Write the proportion equation
313,649.28 : 432,829.44 = 170,403.84 : x - Step 2: Convert to fraction form
313,649.28/432,829.44 = 170,403.84/x - Step 3: Cross multiply
313,649.28x = 432,829.44 × 170,403.84 - Step 4: Simplify right side
313,649.28x = 73,755,798,641.05 - Step 5: Solve for x
x = 73,755,798,641.05/313,649.28 - Step 6: Final answer
x = 235,153.73
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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.